There was a reply in that thread saying that Wattman is not for laptops...
but, that doesn't make particular sense considering that the GL702ZC has
desktop grade hardware... also, why prohibit use of Wattman on mobile in
the first place?
the GPU would still benefit from undervolting.
I imagine because Wattman can be used to Overclock GPUs which is pretty much prohibited by Laptop manufacturers. Laptops are not engineered to be Overclocked in any way, otherwise it could end up damaging the Laptop.
Wattman is meant to be used on a Desktop that has no restrictions while Laptop do have restrictions. Need to remember, your RX-580 is a Laptop GPU not a Desktop GPU. It was made to run in a laptop under the laptop's specs.
Except that Wattman is not only used for overclocking.
It's also meant for undervolting - which is what I'm primarily interested
Laptop manufacturers often mess up the cooling, resulting in thermal
throttling at STOCK settings, and AMD admitted themselves they increased
the voltages to all of their GPU's from factory to improve yields.
Undervolting the GPU would result in much lower power expenditure and lower
Take my Ryzen 1700 CPU in the laptop for example.
It's original voltage was set to too high... 1.1875V at 3GhZ across all
I can easily undervolt the CPU to 1.05V and overclock it to 3.3 GhZ
(increasing performance by 10% and radically dropping power consumption and
heat emissions - my CPU is actually cooler by 10 degrees Celsius as a
result and 10% FASTER).
Point being, laptops can easily run overclocked and undervolted without
damaging anyhing... but it depends on the individual system.
For the GPU, I'm not interested in overclocking it as it has plenty of
juice and that would only bring minimal improvements even if it were done.
I want to undervolt the RX 580 on the core and VRAM to radically drop power
I was already able to use MSI Afterburner to drop the core voltage by -93mV
stable across all workloads and it dropped my temperatures from 88 degrees
Celsius to 75 degrees Celsius at maximum load - and it also resulted in
much quieter fans.
I want wattman so I can undervolt the GPU VRAM in addition to the core
undervolt and see if I can drop power consumption further.
I understand what you are saying. But if other users with Laptops see that Wattman is available, they may try to OVERCLOCK or change some other parameters on the GPUs causing unknown consequences with the laptop. In my opinion, I believe this is the reason why AMD doesn't make Wattman available for Laptops.
One of the Moderators here in AMD Forum could probably give the actual reason why Wattman is not included in Mobile Driver sets.
If people don't understand how to use Wattman, they shouldn't use it on
laptops or on desktops. Plain and simple.
Actually, most people interested in laptop modifications would try to
undervolt their GPU's to increase efficiency and then see if they can
overclock within a given margin to observe how much performance they can
extract at same or lower power levels without over-stressing the hardware
and cooling... majority of the time, they usually settle on an undervolt.
Also, the argument that laptops would run hot is not especially valid,
considering that even desktops run at a high risk of overheating if
overclocked incorrectly - which has been done before.
If anything, desktops have a much higher failure rate in comparison to
laptops when it comes to such modifications.
Laptop users who do such modifications tend to be a lot more careful.
But again, we're talking about a laptop with desktop grade hardware and
drivers written for desktop (not laptop).
These are desktop RX 580 drivers... so I fail to see why Wattman is STILL
not showing up in drivers.
Because the device ID of the GPU probably indicates that it's a laptop device ? Unfortunately, there is nothing more than can be done.
Due to thermal issues, most laptops are not designed to support overclocking. Enabling Wattman on a laptop would enable BOTH under and overclocking, so it's disabled.
Except that many laptops have a tendency to experience thermal throttling and hardware failures more often than not because OEM's don't design adequate cooling in the first place for STOCK clocks.
Wattman is needed in laptops to UNDERVOLT the GPU (without touching the clocks) on both core and memory.
Assuming that most people would just overclock the GPU in laptops without 0 regard for temperatures or power consumption is misguided at best.
Laptop users are far more cautious with such modifications and usually opt for undervolting.
Besides, if a GPU is over-stressed because someone ended up overclocking it, other issues would crop up long before hardware failure... too high temperatures which would easily shut down the OS, artifacting, and a myriad of other issues.
Besides, this is a desktop grade RX 580 using desktop drivers... not mobile drivers.
That is not a desktop graphics chip...it is a cut-down Mobility graphics. There are differences. Laptops are not made to be overclocked.
Radeon RX 580 (Laptop) 2304 @ 1077 MHz
It's a desktop gpu chip modified to work in a laptop which is soldered to
The main difference is that it's clocks are running 20% lower than the
desktop RX 580 with 4GB.
No real cut downs as far as hardware itself goes considering the actual
performance is about 10% below the desktop version (which is accounted with
the clock differential).
A real cut down would mean the chip has less ROP's for example, less stream
processors, etc. All of the hardware is basically the same as the desktop
RX 580 with 4GB except the clock frequency.
As for the argument that laptops were not meant to be overclocked... why do
people automatically assume overclocking when Wattman is concerned?
All I want is UNDERVOLTING enabled on stock clocks.
Also, laptops can EASILY be overclocked and withstand it... anyone who is
interested in laptop modding would first undervolt the hardware to improve
efficiency and get rid of thermal throttling that inept OEM's put in there
because they couldn't be bothered to design a proper cooling assembly for
the hardware in question, and then they might try overclocking - only if it
brings real performance difference for a marginal or no increase in
temperature or power consumption.
Regardless...no laptop currently offers Wattman. If you want to explain your reasoning..explain it to the OEM. I'm sure they would be happy to explain it to you.
AMD recommends using the graphics drivers provided by your notebook's manufacturer as the manufacturer may customize the drivers to support the built-in display and the features and functions specific to the notebook. Customized graphics drivers are available for download from most notebook manufacturer's web site.
If the current operating system is not the version originally installed on the notebook it may not meet all requirements and compatible graphics drivers may not be available. Please refer to the notebook manufacturer for supported operating systems and drivers.
AMD Mobility Radeon™ Graphics Driver:
AMD provides a reference for AMD Mobility Radeon graphics drivers with limited support for notebook specific features and functions. This is not intended to be used as a replacement for the notebook manufacturer's driver.
Wouldn't make an ounce of difference even if I tried as OEM's can be rather stubborn like that and they stop releasing new drivers pretty much after the orginal ones were supplied on their website (except potentially the BIOS).
Also, using the original drivers as provided by Asus is a waste of time since they also don't have Wattman enabled.
Freesync is fully functional with the new drivers if one uses an express install, and I guess I will have to stick with MSI afterburner for the undervolt.
I found a work around to make wattman work.. installed current drivers, 18.3.4, radeon overlay and chill work but no wattman. Install msi afterburner and change a few settings, and apply. Now open radeon and wattman should be available. Not all features work, but if you make custom profiles for each game, you are given full clock and voltage control in those menus. I think you can uninstall msi after, but I intend to leave it because you'll likely need it next time you update drivers.
Finally! Not all heroes wear capes...
Can you tell me how you managed to pull this off? I installed MSI Afterburner (newest), but when I cap the temperature or clock and click apply, it jumps back to stock values immediately. I open Radeon Settings, but there's no WattMan either. Did you have to enable kernel-mode settings in Afterburner to make any significant changes? I really don't want to mess things up, I too am only after downclocking the notebook to make it more silent in late night gaming sessions.