PC Building

[LBJGH]

After many years absent from AMD I'm back with a monster update.

Over the years I've had 486 AMD, Thunderbirds, duron's then moved to an Intel 6700k at 4.6ghz.

On cyber Monday I purchased a gigabyte x670 mobo, ddr5 and the 7950x3d. I figured get the best base for future upgrades. Currently using an AMD 6700xt.

The old system would Max out both the cpu and video card at 100% while gaming. Now the new cpu maxes out at about 20% with the video card at 100%

It's been a relatively step learning curve to optimize the ryzen 3d vcache.

I'm also surprised this AMD is only able to hit 5112mhz. Not close to the 5,7ghz advertised. Max Temp has been 68c

[LBJGH]

Deleted

[BigAl01]

Have you updated all of the drivers, in particular the chipset drivers?  At least your temperature is decent.  It seems like something is holding it back, and maybe it's not utilizing all the cores.

[LBJGH]

Clean install win11 pro. Latest drivers.

Precision over boost enable.

All cores working correctly with ccd0 fully utilized during gaming. 

I'd like to see the advertised speed at least once. 🤓

[FunkZ]

The 7950X3D requires a little extra setup to work at peak performance. This is because only one of the two CCD chiplets has the extra 3D L3 cache, and runs at a slightly lower clock speed.

https://community.amd.com/t5/gaming/how-to-set-up-your-system-with-a-new-amd-ryzen-9-7950x3d-or/ba-p...

[LBJGH]

Thanks for the link. I did have all those previously settings. 

One other thing is to used "balanced" power mode not performance in Windows.

I've seen ccd0 and ccd1 hitting the same clock speeds. 

[ajlueke]

Options to optimize gaming performance in Windows 11 - Microsoft Support

If memory integrity is on, it will cause a hit to CPU performance.

[LBJGH]

Thanks for the tip. I'll check that today.

[LBJGH]

Interestingly I did a clean install of Windows and all drivers yesterday and confirmed at least one core hit the advertised speed at 5712 MHz. That was for a very short duration but long enough for a screen grab.

Now I can sleep well. 😂

[Starker_Sturm]

The 3D V-cache only exists on one chiplet. This chiplet (to my understanding) is more sensitive to temperature, and therefore has lower clock speeds. The other thing to note is that the advertised speed usually refers to a single core boost clock (in this case on the non-X3D chiplet.) However, as others are saying here, try messing around with your PBO and voltage settings to achieve higher clocks if desired.