67 Replies Latest reply on Dec 11, 2018 10:54 PM by daniel91

    RX Vega 56 Low GPU Usage in some games

    daniel91

      Hello, im new here and im dying for some solid advice since i've tried everything i could..

      last week i purchaced an RX vega 56 OC edition (air boost), and started playing my games. i have a 144Hz monitor with freesync enabled in both Catalyst and my monitor, and i noticed my fps is terrible at some points and my game stutters all  over the place. i started monitoring my performance, and ive see that in almost ALL  my games (for example, BO4, BF 5,Witcher 3, Farcry 5) my gpu usage can drop all the way down to 50-60% causing a HUGE  fps drop leading to terrible stutter.

      my CPU is not the weak point, i have an i7 7700 (which never reaches 100% and stays cool), 16 GB of 2400 speed ram and a 850W PSU.

       

      all i want is for my new card to work at  its maximum potential REGARDLESS of what graphic setting i choose. im reaching for 144 fps in all my games, and these low usages are not helpping me what so ever.

       

      please,im dying for some solid advice!

      *i have the most recent bios and GPU drivers aswell

       

      Message was edited by: Matt B Edit title

        • Re: Horrible GPU usage!
          elstaci

          Many Users with the RX Vegas needed to configure the GPU cards using AMD Wattman to prevent crashes or very poor perfomance.

           

          Other Users will need to show you how to properly configure Wattman with your Vega GPU Card.

            • Re: Horrible GPU usage!
              daniel91

              I know how to play around wattman, but my gpu works great WHEN it is fully utilizing. the problem isnt performance  the problem is that it simply wont stay at 90-100% utilization at all the games stated above.

              nothing in wattman changed this, sure when the utilization was 99-100% i had more frames and much better performance, but it did not change anything regarding the over-time utilization of the gpu.

                • Re: Horrible GPU usage!
                  elstaci

                  Hopefully a User(s) here with the same GPU can offer better advice. I don't have a RX Vega but was just stating the problems other Users here have posted concerning the RX Vega GPUs.

                  • Re: Horrible GPU usage!
                    pokester

                    Sounds like it is throttling. This is likely a power ceiling issue, very common on many flavors of AMD cards. In Wattman slide the " Power Limit " slider all the way to it's maximum. See if that doesn't help your issue.

                      • Re: Horrible GPU usage!
                        daniel91

                        I tried all sort of options, it seems that in some games i simply cannot hold as stable utilization. and what could be throttling? i belive my temps are fine on everything since i monitor them non stop. again, some games use near 100% at all times, but MANY games simply dont utilize the card constantly causing my fps my stutter all of the place...

                  • Re: Horrible GPU usage!
                    amdmatt

                    Can you provide a bit more information? For example, what temperature is the GPU reaching under load?

                    What frequency is the GPU clock speed running at?

                    What temperature is your CPU hitting?

                    What OS are you using? Is it up to date?

                    What AMD driver are you using?

                    what in game image quality settings are you using?

                    Have you setup an application profiles or FPS caps in Radeon Settings or using other software?

                    Have you enabl;ed Vsync in game?

                     

                    In the meantime i would suggest setting the GPU Power Limit to +50% in Wattman and then click Apply.

                    1 of 1 people found this helpful
                      • Re: Horrible GPU usage!
                        daniel91

                        gpu under load (after puttin 50% and undervolting a bit) 74 celcius, CPU hitting max 60 , windwos 10 pro 64 bit with latest AMD drivers. Vsync is always off.

                        it doesnt matter what i do in wattman, i have achieved an incredibly efficient wattman profile where i get huge performance increase and lower temps than turbo mode.

                        in some games where i have cosntant near 100% utilization its working amazingly smooth with insane FPS, but in MOST  games my GPU simply drops usage with the frames im gettin. i dont know what to do. (again, games like black ops 4, battlefield 5, farcry 5, destiny 2).

                        my CPU  usage never reaches 100% so i doubt its a bottleneck ( i7 7700)

                          • Re: Horrible GPU usage!
                            trollberserk

                            Hi,

                             

                            I have the same problem with RX 580 8Go, I try all the thing here and voltage are good, they don't move during gaming but GPU usage drop from 90%-100% to 60% in many game. I don't know what to do

                             

                            My RIG:
                            Ryzen 7 1700 3.7Ghz
                            16 Go ram
                            RX 580 8Go
                            Win 10 64 bit

                            1 of 1 people found this helpful
                              • Re: Horrible GPU usage!
                                daniel91

                                i tried everything man spent a ton of money on this card and a proper PSU for it.. ending up only using about half of it most the time since this problem.. i hope somebody can help us

                                • Re: Horrible GPU usage!
                                  pokester

                                  As an RX 580 owner myself I know exactly what you are describe. The OP's Vega issue is different, the Vega really is a much different card than the Polaris chips.  That is good for you though.

                                   

                                  Your issue absolutely sounds like a power ceiling / throttling issues. Do the following:

                                  Raise the  Red Power Limit Sider to it's maximum. Slide the slider all the way to the right to 50. This is still well withing normal range and is not over volting in any way. It is dynamic and doesn't even mean your card is constantly using more power. Only that it can use more when needed.

                                   

                                  This setting is in Radeon Setings / Gaming / Global Settings / Global Wattman : down below the fan settings.

                                  If this alone does not help there are several other things you can do to get it stable.Then try the following,

                                  To begin with if your are using anything like Afterburner, Trixx or other graphics tweakers, don't and uninstall them.

                                  Next to the following:

                                  1. Disable Fast Startup (google it)

                                  2. Disable Hibernation (google it)

                                  3. Make sure your Computer is set to "High Performance" in the power profile.

                                  4. Turn off all Windows 10 game functions. In settings Gaming disable anything on, DVR, Game Bar ETC....

                                  5. If your anti-virus software has a game mode, use it.

                                   

                                  Now I want you to re-install the driver again doing the following:

                                  Download the driver you want.

                                  Run DDU from safe mode.  Get it from WagnardSoft_com.

                                  Disconnect from the internet. ( this is the key as it is Windows update screwing up the reinstall)

                                  Restart, and install the driver.

                                  Restart with internet back on and you should be good to go.

                                   

                                  After the driver re-install set the Power Limit Slider back to +50, to it's maximum.

                                   

                                  If that doesn't get it. Let me know. I use custom fan and temp settings with my RX 580 and can post a screen shot of my settings for you to duplicate. I am work right now and don't have it here. I have done all these things and it has made my RX 580 rock solid stable, and it is anything but without what I have done.

                                   

                                  I know this sounds like a lot, but unfortunately some of these cards are really a PITA to get working. I get that, and am just a user like you, I had no hand in making them.

                                  I can tell you that when you find the settings that work, they are usually rock solid from there. Just sucks that they take a lot of tinkering.

                                  1 of 1 people found this helpful
                                    • Re: Horrible GPU usage!
                                      daniel91

                                      were you reffering to me with these tips?

                                        • Re: Horrible GPU usage!
                                          pokester

                                          No, Trollsbeserk with the RX 580.

                                           

                                          However all the changes to Windows I suggested, I find makes gaming HIGHLY MORE STABLE regardless of card.

                                           

                                          1. Disable Fast Startup (google it)

                                          2. Disable Hibernation (google it)

                                          3. Make sure your Computer is set to "High Performance" in the power profile.

                                          4. Turn off all Windows 10 game functions. In settings Gaming disable anything on, DVR, Game Bar ETC....

                                          5. If your anti-virus software has a game mode, use it.

                                           

                                          ------------------

                                          Now with Wattman you may need to mess with voltage and PStates based on other help I have seen with Vega. You can search the forums there is lots of advise on those settings. I would think Matt will give you some good help so you may wait for his advice before changing more stuff.

                                          1 of 1 people found this helpful
                                        • Re: Horrible GPU usage!
                                          trollberserk

                                          Sorry the late answer^^' I'm French so when you answer me I was sleeping

                                           

                                          So, I do all what you wrote and that doesn't work My GPU usage stuck at 60% usage! I really don't understand why

                                      • Re: Horrible GPU usage!
                                        amdmatt

                                        I am using a Vega GPU myself, albeit with a slower CPU than yours for gaming, and i do not see the issues you describe. I am using out of the box default Wattman settings. Unfortunately you still have not answered all of my questions, or provided any details about your system specifications so it is difficult to offer many suggestions. Please click this this > INFORMATION REQUIRED WHEN POSTING A QUESTION

                                         

                                        One thing you can try in the meantime is to open up Wattman and right click the P7 GPU clock state circle and set P7 as the minimum state and see if that improves your performance in those games.

                                         

                                        Perhaps a video and some screenshots showing your issue would be helpful too.

                                          • Re: RX Vega 56 Low GPU Usage in some games
                                            daniel91

                                            System:

                                            MSI RX vega 56 airboost OC edition 8gb. windows 10 pro 64 bit, latest drivers of 18.11.2. c24fg70 144hz freesync monitor connected with DP.                                GIGABYTE B250M-DS3H with latest F9 bios. i7 7700 CPU with h60 watercooling system.850W thermaltek PSU.

                                             

                                            now for what you've suggested, when i lowered P7 to the minimum, my GPU was working near costant 100% on all the games i've mentiond previously which is a step forward, but the frames were much much lower since the clock speeds were very low. what do you think this means that P7 at minimum forces GPU to work 100%?

                                              • Re: RX Vega 56 Low GPU Usage in some games
                                                grimbloodwolf

                                                @daniel91, I think you misunderstand...... you're not "lowering" P7"...... you're setting it as the minimum state..... P7 being the highest state means that you'll more or less be locking the clock at it's highest state...... set P7 back to it's default speed and right click it, this will give you a popup menu with two options "set as minimum state" is the one you want to choose.

                                                • Re: RX Vega 56 Low GPU Usage in some games
                                                  amdmatt

                                                  Please post a video showing what you mean and have the GPU clock speeds, usage etc showing on screen. I would like to see a video showing the default behaviour and a video showing the behaviour you see after my suggestion. Please also provide a screenshot of your Wattman settings.

                                                    • Re: RX Vega 56 Low GPU Usage in some games
                                                      daniel91

                                                      Ok, here is the defult behavior :Defult - Streamable  a video after setting P7 to Min:P7 Min - Streamable  and another video where i just tested if i put P7 all the way to the lowest frequency (852MHz): P7 lowered - Streamable

                                                       

                                                      An image of my Wattman: Imgur: The magic of the Internet , and i have to mention again that i've tested all possible wattman settings, with power saving balanced and turbo, and the GPU usage still drops in all of them. hope this is enough

                                                        • Re: RX Vega 56 Low GPU Usage in some games
                                                          amdmatt

                                                          Thanks, that was helpful.

                                                           

                                                          I could not see any stuttering in any of the videos, but i did observe various differences in GPU clock speed.

                                                           

                                                          One thing i did notice, you appear to only have 4 CPU cores? I thought you had a 7700K and that should have 8 threads as far as i know.

                                                           

                                                          I am going to download Far Cry 5 and do some testing myself to what behaviour i see using my Vega 64 Liquid reference edition.

                                                           

                                                          Are you running at 1080P max settings?

                                                           

                                                          By the way, how are you finding gaming on that display? Just curious.

                                                            • Re: RX Vega 56 Low GPU Usage in some games
                                                              daniel91

                                                              oh silly me lol.. i forgot to tag the rest of the on screen display cores, ya the i7 7700 does have 8 threads its just my bad. ya im runnin all my games at 1080p and i have ultra preset on farcry 5 and most my games. and im loving this monitor its amazing, games that utilize my gpu and the freesync are butter smooth and with this wattman preset frames are incredibly high and temps are low. i thank you for you interest in this thread man, i do hope we can resolve this..

                                                              one thing though, why was my GPU utilized 100% when i lowered my P7 all the way down? could that be a clue?

                                                              Also, when P7 was on min, the clocks stayed high, but cpu usage was around 50-60%, which is strange.

                                                                • Re: RX Vega 56 Low GPU Usage in some games
                                                                  amdmatt

                                                                  Well, Far Cry 5, along with some of the other games you mentioned, can be fairly taxing on the CPU. This is most commonly seen at lower resolutions, such as 1080P where the GPU can render all those pixels easily. What happens is the CPU is working flat out, driving as many FPS as it can, but the GPU is being held back and is waiting on the CPU so, it never reaches full utilisation. As you increase the resolution, or increase the multi sample anti aliasing or image quality settings, this limitation is moved away from the CPU and back towards the GPU. As you do this, the GPU utilisation increases.

                                                                   

                                                                  You can test this yourself. Enable VSR in Radeon Settings, start Far Cry 5 and set the in game resolution to 3840x2160P. Start playing, and watch your GPU utilisation get pinned to 99%, regardless of what you do with your clock settings.

                                                                    • Re: RX Vega 56 Low GPU Usage in some games
                                                                      daniel91

                                                                      yah, i've tried that a few days ago runnin 1440p, gpu was runnin all the way, but not enough frames for my 144Hz monitor sadly.. its strange though since the CPU usage doesnt even come close to 100%, i would imagine the GPU would have enough to work with. isnt there a setting that allows you to push the GPU into using more of its resources?

                                                                        • Re: RX Vega 56 Low GPU Usage in some games
                                                                          amdmatt

                                                                          CPU usage does not accuraetly reflect this unfortunately, it doesn't quite work the same way. You can be CPU limited at a resolution, even if your CPU usage is not pegged at 100% over all cores.

                                                                           

                                                                          The GPU will only render frames as fast as the CPU can deliver them. You're already using one of the fastest gaming CPUs out there, I'm not sure there is much else you can do unfortunately. As you see, if you increase the resolution, the GPU has more work to do with more pixels to render and can fully utilise itself. The higher you go in resolution, the less impact the CPU has on things.

                                                                           

                                                                          The game engine/API plays a part too. That's why some games you can chug out higher FPS at 1080P than in other games without the CPU holding things up. Games with a lot of AI, or units/calculations requred in game, or even multi player heavy games (ala Battlefield) with lots of other human players, tend to be more demanding on the CPU, especially at lower resolutions.

                                                                            • Re: RX Vega 56 Low GPU Usage in some games
                                                                              amdmatt

                                                                              This video explains it in more detail than i have.

                                                                              How to Identify a CPU/GPU Bottleneck - YouTube

                                                                                • Re: RX Vega 56 Low GPU Usage in some games
                                                                                  daniel91

                                                                                  great video! the basically im CPU bound, which sucks alot because this is a great cpu and i never expected it to make my GPU underperform.. that being said, i have seen run farcy for example with much higher gpu usages with a cpu on par with mine and even sometimes weaker. kinda makes you think maybe there could be something i can do to reduce the strain of the CPU.

                                                                                    • Re: RX Vega 56 Low GPU Usage in some games
                                                                                      ajlueke

                                                                                      That seems unsual, as I run a Vega 64 as well and don't see the issue you describe either.

                                                                                       

                                                                                      Have you You can set the "frame rate target control" in the adrenaline driver to 144fps, any fps above that will just cause tearing anyway and generate excess heat in the GPU.  Not sure I would raise the power limit, if your issue is thermally related that will only help throttle you faster.

                                                                                        • Re: RX Vega 56 Low GPU Usage in some games
                                                                                          daniel91

                                                                                          isnt framerate contol targeted towards limiting the FPS to a chosen number? i dont know if it drives in ito the wanted number..

                                                                                            • Re: RX Vega 56 Low GPU Usage in some games
                                                                                              ajlueke

                                                                                              You are correct.  The issue is, if you have a 144 Hz display, additional fps beyond 144 will only result in image tearing and aren't really useful.  By setting the frame rate target control at the maximum value your monitor can display, the GPU won't render those additional frames, which leads to less power consumption from the wall, and less heat for the GPU.

                                                                                            • Re: RX Vega 56 Low GPU Usage in some games
                                                                                              pokester

                                                                                              Raising the Power Limit will  never be a factor like that. It only raised the potential ceiling at peak. Either the card needs or it doesn't. It is completely dynamic. If he is throttling, then he may need to look at lowering potentially clock rate, voltage and adusting the PStates, apparently this is common on Vegas. There are many threads on this about the Vegas plus google is your friend. Don't know why the drivers after a year and a half of Wattman still can't get it right, but that is a separate story.

                                                                                              --------

                                                                                              I also don't see the i7-7700 as being the bottleneck. More likely you don't have enough card to feed your monitor. I have a 7700k and a RX 580 and my setup flies though anything I throw at it 1440p @ up to 75hz Freesync. No I don't pull a constant 75 in all games. Some games do drop to the high 40's at times but still in my freesync range for my monitor. Mine has a 44-76 range. It is very important to pair your graphics card properly with your monitor. 

                                                                                              To me the big issue is getting the Vega working at it's most stable settings. Then realizing you don't have a card that really is specked for 144hz. At 1080p that is pushing at least as hard as 4k 60. That card is aimed at 1440p 60hz gaming or 1080p 100-120. Honestly even the Vega 64 would be rough too. AMD just doesn't have a good card for running at super high refresh rates or 4K IMHO.

                                                                                              ---------

                                                                                              So ultimately when you finally get the Vega dialed in, and if it still isn't operating as you believe it should. I would definitely try reducing the refresh downward and see what affect that has.

                                                                                               

                                                                                              ----------

                                                                                              With the power supply he has I wouldn't think it to be an issue, but have seen many news ones be not right out of the box too. OCCT  from ocbase_com would be a good utility to run an rule that out.

                                                                                                • Re: RX Vega 56 Low GPU Usage in some games
                                                                                                  ajlueke

                                                                                                  So the card is dynamically shifting between different limits.  Clock speed and, wattage, and temperature.  Say for example, you raise the power limit 50%, allowing the card to use 330W as opposed to 220W.  If a workload comes in that requires a 100% GPU load, the card will boost as high as it can from idle.  Lets say the maximum allowed clock speed, and voltage to maintain it requires 300W.  So, at the default power limit you don't have 300W available, and the clock speed would have to be throttled accordingly.  But, with the 50% increase, up the clock speed goes, which leads to more heat.

                                                                                                   

                                                                                                  Often times, the card will already thermally throttle even at the normal power limit.  In that circumstance, raising the power limit will cause the card to thermally throttle faster, as more power is available to raise the clocks and the GPU hits the thermal cutoff.  Now it has to cut the clockspeed and power to keep the thermals in, rendering the increase in power completely moot.  So if a GPU is already hovering near the temp limits at the base power limit, raising that limit only makes the throttling more jarring. 

                                                                                                    • Re: RX Vega 56 Low GPU Usage in some games
                                                                                                      amdmatt

                                                                                                      Increasing power limit is not needed usually in CPU bound scenarios. I see almost identical performance whether i have the power limit at 0% or 50%, due to the application being CPU bound at 1080P. However, if you try this same scenario at 4K, you see a noticeable difference in performance and GPU utilisation/temperature vs what you see at 1080P.

                                                                                                      1 of 1 people found this helpful
                                                                                                        • Re: RX Vega 56 Low GPU Usage in some games
                                                                                                          ajlueke

                                                                                                          I saw virtually no improvement in GPU bound scenarios as well on my Vega 64 air, with the reference air blower.  Regardless of the power available, the GPU would thermally throttle and wind up at about the same average clock speed.  Remove temperature as a restriction via  a water block, and then the power ceiling becomes the limiter.

                                                                                              • Re: RX Vega 56 Low GPU Usage in some games
                                                                                                daniel91

                                                                                                watched some benchmarks online, it seems in all of them the vega 56 has a 99% usage in farcry 5 lol, maybe something is wrong with my RAM, CPU?

                                                                                                  • Re: RX Vega 56 Low GPU Usage in some games
                                                                                                    amdmatt

                                                                                                    I'll let you know the outcome of my testing. I'm wary of trusting benchmarks online as its not always clear what settings or system specs they are using.

                                                                                                    • Re: RX Vega 56 Low GPU Usage in some games
                                                                                                      ajlueke

                                                                                                      It is strange that the utilization drops.  usually when a GPU throttles for either heat or power reasons, it stays at 100% utilization.  There may be a power delivery issue at play here.  Try removing the card from the motherboard and reseating it in the PC slot, also unplug and reseat:  CPU power on motherboard/24-pin on motherboard, and 8-pin power cables on the GPU.

                                                                                                       

                                                                                                      Make sure the power cables on the GPU are coming from two different PSU ports, not daisy chained on the same cable.

                                                                                                        • Re: RX Vega 56 Low GPU Usage in some games
                                                                                                          daniel91

                                                                                                          wow, really? they are pinned from the same cable at the moment. are you sure it matters? :O

                                                                                                            • Re: RX Vega 56 Low GPU Usage in some games
                                                                                                              ajlueke

                                                                                                              That really depends on which PSU you have.  It is less likely to be and issue if your amperage is sent over a single rail, but even in that case, you can overwhelm a single cables ability to deliver power.

                                                                                                              • Re: RX Vega 56 Low GPU Usage in some games
                                                                                                                amdmatt

                                                                                                                You should definitely not be daisy chaining PSU cables, but i doubt it has any effect on GPU utilisation. If anything it will just make your system unstable.

                                                                                                                  • Re: RX Vega 56 Low GPU Usage in some games
                                                                                                                    daniel91

                                                                                                                    Ok wow. i plugged a separate 8 pin in each connector, and the problem seems less now! utilization does jump around, but FPS seems to be alot more stable now which is an improvment! i still think its very weird optimizations in these games, since my CPU doesnt even come close to being fully utilized (why i dont understand the logic of the drops). another step towards improvment!

                                                                                                                     

                                                                                                                    or maybe im just imagining things, lol

                                                                                                                      • Re: RX Vega 56 Low GPU Usage in some games
                                                                                                                        amdmatt

                                                                                                                        Well, glad things have improved.

                                                                                                                          • Re: RX Vega 56 Low GPU Usage in some games
                                                                                                                            daniel91

                                                                                                                            But srsly matt, do you think they plan on adjusting the future drivers? Such a waste having a monster like this running half powered..

                                                                                                                              • Re: RX Vega 56 Low GPU Usage in some games
                                                                                                                                amdmatt

                                                                                                                                The application is CPU bound at 1080P and so it's nothing to do with drivers in this example.

                                                                                                                                • Re: RX Vega 56 Low GPU Usage in some games
                                                                                                                                  ajlueke

                                                                                                                                  amdmatt is 100% correct.  The issue in this case depends on the PSU and the power requirements of the GPU.  I didn't see your PSU model on this thread, but some PSUs can have a 850W rating, but spit that power over four 12V rails for example.  That means, each 12V rail has 212.5W available to it.

                                                                                                                                   

                                                                                                                                  An 8-pin PCI-e power capable can supply up to 150W, so with two connected, the GPU can expect delivery of 300W.  Unfortunately, if both GPU slots are occupied by a single cable, plugged into a single slot on the PSU it only has a single rail worth of power it can deliver, the 212.5W, resulting in an underpowered GPU.  If you split the connects between two cables and ensure each cable is on a different rail (usually labeled on the PSU), then the power available is 425W to the GPU.

                                                                                                                                   

                                                                                                                                  Sometimes, as I mentioned earlier, even if the PSU has a single rail (preferred for exactly the reasons above) delivering the full 850W, you can still have performance degradation by using a single cable.  In that scenario, the cable would be required to deliver the full 300W to the GPU, which some cables simply cannot do.  By splitting the cables, you ensure that a single cable never has to deliver more than 150W.

                                                                                                                                  1 of 1 people found this helpful
                                                                                                                                    • Re: RX Vega 56 Low GPU Usage in some games
                                                                                                                                      pokester

                                                                                                                                      yah absolutely no doubt sharing one pin is a no no. Regardless of what the OP has going on there are tons of reports though of people with Vegas that actually undervolt and remove the throttling issues.

                                                                                                                                      1 of 1 people found this helpful
                                                                                                                                        • Re: RX Vega 56 Low GPU Usage in some games
                                                                                                                                          ajlueke

                                                                                                                                          I have anecdotally read the same thing.  Undervolting a Vega that is using the reference blower can actually give higher performance than the stock settings.  The undervolting allows for lower thermals at the same clock speed which can help keep those clock speeds higher.  Anything you can do to improve the overall case ventilation and airflow will help.

                                                                                                                                           

                                                                                                                                          With my Vega 64, it would average around a 1450 MHz clockspeed when the reference cooler was installed.  It would run in the 1500 Mhz range briefly, get too hot, and it would have to drop down to a lower p-state.  Increasing the power limit via turbo mode, or a custom profile did nothing, it would still average around 1450 MHz, but it would be able to jump up to the full 1632 MHz briefly, but then it would just hit the thermal limit faster.  I though about undervolting it myself for a while, but opted to put the GPU under a EKWB waterblock instead.

                                                                                                                                           

                                                                                                                                          Now I have it on a 3% overclock with 1000 MHz on the HBM2 memory and the highest temps I see are around ~35C.  It can hold a 1675 MHz clock indefinitely with the power limit set to +50%.  

                                                                                                                                            • Re: RX Vega 56 Low GPU Usage in some games
                                                                                                                                              pokester

                                                                                                                                              Exactly in line with what I have read, but I don't own one myself. I have a 580 which has it's own issues. To me no card out of the box should require all this tinkering to get them to work. This isn't like trying to overclock and having to play with settings. These cards of late don't work as they should period without a good amount of adjustment work. So I don't agree with Matt that there isn't a driver issue. There sure is an issue somewhere, many of the older cards that now require tweaking never needed it before the Wattman drivers, the newer cards then either have bios issues, driver issues, or can't live up to the white paper specs so they must be wrong. Any way you slice it, it is a nightmare issue for far too many users, one that should be unacceptable by anyones's standards.

                                                                                                                                                • Re: RX Vega 56 Low GPU Usage in some games
                                                                                                                                                  daniel91

                                                                                                                                                  I agree completely. Feels silly running these games on half speed at 1080p.

                                                                                                                                                    • Re: RX Vega 56 Low GPU Usage in some games
                                                                                                                                                      pokester

                                                                                                                                                      Sorry been days ago and never read your last comment. I re-read back through all this and absolutely understand and accept that the the testing results are correct. I appreciate Matt taking the time to do an contribute all the results. Frankly he is just awesome like that. I also understand what makes cards throttle vs. the power you give them, through changing power requirements based on demand. The question I have to ask is this: If that Vega card is cpu bottlenecked by that processor why? Lesser cards in the AMD line like my RX 580 then actually scale better with such cpus then the flagship product? Is that not a step backwards then from Polaris to Vega? It concerns me because I absolutely want AMD to succeed, I am an admitted fan. I know every review I ever read about Vega it is voiced the disappointment of how it compares to the competition in gaming. Yes I absolutely get it has areas of computational ability it absolutely shines. I am speaking strictly gaming, and overall stability. Through the last year though I have without any doubt already seen where a 1050ti (my first nvidia card in many years) scales better (by a lot) with a Phenom II x6 1090T than an RX 580 does. This now has me thinking out loud here that this next generation takes a step back from it's predecessor in scalability and that was already a step back from the competition. Just not a good trend line here.  I want to be clear here that I wasn't disappointed that my RX 580 didn't do better with that card, I figured it wouldn't. I was just surprised to find out that the Nvidia card literally brought that CPU back to legitimate gaming viability. Now then my next observation is that the Vega was introduced when this CPU of literally the same generation and the 2nd fastest i7 of Intel's cpu's at that time. A CPU that with processing requirements of no more than 4 threads, which for 95% of even the very latest AAA games at this point are ample, and are still absolutely on a core to core basis in the same ball park of speed as AMD's current CPU products with Ryzen, and hands down faster than their older processors. The final question then is just how slim of a window of perspective possible purchasers with the right hardware does Vega make any sense at all to consider a viable purchase? I absolutely mean no disrespect at all, just trying to wrap my head around it because I literally was considering buying one myself for Christmas. Again more out of brand loyalty than research even knowing about a lot of issues I have read about. But reflecting on so many of the issues I read about and how it may potentially scale with my 7700k, I think I just need to wait for a future generation, and hope that generation comes before gaming requires me to change to something green again.

                                                                                                                                                       

                                                                                                                                                      -------------------

                                                                                                                                                      amdmatt   This is the card I have been thinking about getting it seems like a great value at the moment. I am gaming on a Freesync 75hz max monitor at 1440p right now with an RX 580 and am not really unhappy other than a few games that do dip in high 40's, most recently though a new game actually took me in the mid 30's, maybe the games fault but had me thinking well maybe at this good price to pull the trigger and get a card that will truly max what I can do on my monitor and have some real legs for the games to come in the next few years. All of this has me wondering with my 7700k if that isn't going to be enough to drive this thing, then it isn't worth spending this money. What is you honest opinion on this, what do think of the card I am thinking of getting (link to follow) and what Power Supply Wattage and rating, do you think, not the listed minimum, that will guarantee rock solid performance without over buying in a PS as it seems they are actually trending down in wattage again at this point?  That Card Link, $410 at the moment: SAPPHIRE Radeon RX Vega 64 DirectX 12 21275-03-20G Video Card - Newegg.com   a decent 1070 ti  that seems to have relatively similar peformance in benchmarks on-line wouldn't require me to replace my 650w gold plus PS, and is 30 bucks cheaper, and comes with a $60 game I actually want. Not expecting you tell me to buy the Nvidia card by any means just pointing out the current conundrum. That's litterally like $190 bucks cheaper to give me more and potentially do it better. Anyway a link to the card I am talking about for the 1070ti: ZOTAC GeForce GTX 1070 Ti DirectX 12 ZT-P10710C-10P Video Card - AMP! Edition - Newegg.com

                                                                                                                                                      • Re: RX Vega 56 Low GPU Usage in some games
                                                                                                                                                        ajlueke

                                                                                                                                                        Hello daniel91,

                                                                                                                                                         

                                                                                                                                                        Can you post the results of your Farcry 5 benchmark run?  I found the results below off PC Gamer.

                                                                                                                                                         

                                                                                                                                                         

                                                                                                                                                        As you can see, the Intel Skylake part (i3-7100) performs far worse than the newer i3-8100.  But what is interesting is that it performs on par with the AMD Ryzen parts.  Since you have a i7-7700 and I am using Ryzen, I should actually be just as if not more CPU bound than you are, and should have lower frames at 1080P despite my faster Vega 64.

                                                                                                                                                        1 of 1 people found this helpful
                                                                                                                                                          • Re: RX Vega 56 Low GPU Usage in some games
                                                                                                                                                            pokester

                                                                                                                                                            Those results look like what I would expect. It makes sense on the 8th gen i3 being that much better as they are essentially 7th gen i5s rebranded. However those are on a 1080ti and apparently as I questioned and it went unanswered. The Vega must be far more CPU dependent?

                                                                                                                                                              • Re: RX Vega 56 Low GPU Usage in some games
                                                                                                                                                                ajlueke

                                                                                                                                                                Vega 64 actually runs between the GTX 1080 and GTX 1080 Ti in this title.  So the game should be slightly more GPU bound than the graph I posted.  What is interesting with daniel91 results is the stuttering and drops he was experiencing.  Based off the results above, even an i3-7100 gives a 97th percentile frame rate of 69.8Hz, so with his CPU he should be well inside the Freesync range of his monitor (70-144Hz) at all times.  That is why I am curious to see his Farcry 5 benchmark result.  Based off that data I am likely more CPU bound with Ryzen, so I should see lower overall frames despite the faster GPU.  If that isn't want happens, then he must be throttling somewhere. 

                                                                                                              • Re: RX Vega 56 Low GPU Usage in some games
                                                                                                                daniel91

                                                                                                                do you guys think this could be RAM related? maybe some configurations are wrong? i currently have 2400 mhz 8x2 dual chanel ram. could any BIOS options be the cause for poor GPU usage? there is an option to select XMP configuration (disabled or 1) and switch from normal to enhanced performance/stability and chill OC(gigabyte MOBO).

                                                                                                                  • Re: RX Vega 56 Low GPU Usage in some games
                                                                                                                    pokester

                                                                                                                    No I don't. Ram speed has pretty big increase on Ryzen systems but even there mostly doesn't break into double digit percentages. It has even less of a change on Intel CPU's so no I really doubt it. That being said 2400 you XMP speed? If so it is slow. So yes enable XMP and unless it causes stability issues it will make things a bit faster. Extra speed rarely ever hurts, thats for sure. Mostly settings in the bios aren't going to change GPU stability. Unless we are talking global stability by pursuing things like over clocks and voltage. Now if you are not on the latests BIOS that is the exception to this. Like software updates it is alway best to have any firmware up-to-date. Like anything else though there are even arguments against that. So best is advice is change one thing at a time see what happens, and don't start changing stuff unless you are having a problem. Don't create new issues you didn't have if it isn't broken don't fix it.

                                                                                                                  • Re: RX Vega 56 Low GPU Usage in some games
                                                                                                                    sazon74

                                                                                                                    I just got 56 with same issues i followd: amd video optimization for gaming global setting(youtube) iv tested games like Crysis 3 very high setting or low 35 fps spikes , i could stand were it sits at 35fps and the gpu would only be around 1200mhz not even try to push it self to my max 1600, then tere parts were looking at the grass and flowers moving will max out giving me like 150fps . Have been tring to figure out why it doesn't when it needs to .

                                                                                                                    • Re: RX Vega 56 Low GPU Usage in some games
                                                                                                                      daniel91

                                                                                                                      I just ran a benchmark, minimum:71 avarage:89 ,maximum: 121 , all on ultra preset no motion blur.

                                                                                                                      FPS is great when everything is chill, but the graph fluctuates a ton and causes really unstable fps and stutter (with freesync on).

                                                                                                                      really annoying. happens in many demanding games too.