I have the EVGA GTX 970 SC 04G-P4-0974-KR and it will not run CUDA applications at the rated SuperClocking 7010 MHz.  It falls back to 6008/3004/1502 MHz.  My CUDA application is Adobe Premiere Pro but the exact same thing happens running CUDA-Z.  Is it my board, the BIOS or an nVidia problem?   The BIOS is 84.04.1F.00.70 which is available but I did find evidence via Speccy a 84.04.2F.00.70 version but do not have any confirmation of its application to my board to my problem or where to get it.  I have tried EVGA support with no help.  Non-CUDA applications will run at the cards rated memory clock frequency.  Here is a Speccy file that shows the problem.  I have similar files from my GTX 780 that does not have the problem

nvcuvenc.dll and nvcuvenc32.dll have been replaced with nvcuda32.dll et nvcuda64.dll since NVidia drivers 340 and higher (august 2014). This is a problem for some older software. There are workarounds like getting these DLLs from old drivers and copying them to system32 for example. Google with the DLL names.
 
What version of Premiere Pro do you use ? For CS5, CS5.5, and CS6, the file "cuda_supported_cards.txt" *must* list the video card in order to enable CUDA acceleration. You can add a line if this file still exists in Premiere directory.  For latest CC versions, "cuda_supported_cards.txt" does not exist anymore...
 
Is mercury Playback Engine GPU Acceleration option available ?
 
Unlike the GTX780, the GTX980 is not in the HCL : https://helpx.adobe.com/premiere-pro/system-requirements.html

It kind of funny that Adobe Premiere Pro dose not even show that the GTX 980 or even the 970 is supported yet!

I don't have an answer for you so I have forwarded this to EVGA

That was done a long time ago as I talked with a EVGA tech support person and is not a solution to the problem  It does not show up on my 4GB GTX680.  Also that does not explain why the instant that a CUDA application is loaded (not yet being used) it immediately downshifts and as soon as the application exits the clock jumps up to the specified frequency.

I get the same behavior from my gtx 970ssc+ when folding also.
 
 

Hi,
 
sadly i can confirm that issue on my GTX 970 SSC+ using Physx FliudMark.
On Linux i have 4 performance level show , 0-3. The card is stuck at perf level 2 using that benchmark.
The gpu boost is fine with 1392, but the memory is stuck at 6008 which is the maximum in that perf level.
 
Same happens for me when playing batman arkham asylum which also utilizes physx.
Afaik physx uses cuda as backend technology so this seems to be the same issue.
 
@johnherz, can you try a game using physx and see if that force the memory to stay <=6008mhz also ?
 
Regards,
Christian
 

Hi Christian
 
Running the Haven bench it works ok, also the X3 Terran conflict bench mark it runs as it should
 
See the 3rd line in 1900 X 1200  :)
 
http://forums.extremeoverclocking.com/showthread.php?t=307081
 
I ran fluid mark  as well as that is a physx bench and GPUZ shows it @ 1502 there as well :(  see the png
 
 

Sadly no, I mainly fold  :)

I have received a very brief email reply from Jacob on this:
 
Hi John,
 
I have been working with NVIDIA on this.
 
For Maxwell GPU on CUDA applications this is expected behavior.
 
I apologize for the confusion earlier!
-Jacob
 
Now my post was only about the card behavior whilst folding.
 
I have replied to Jacob and asked for more detail, I mentioned batman Arkham Asylum which also utilizes physx and Adobe Premiere Pro specifically in my reply.

Hi johnerz,
 
need to get 10 posts for pm first....
 
I noticed that there is a demo version of Batman Arkham Asylum on Steam, would be fantastic if you could test with it !
 
Many thanks,
Christian

Got a response from ManuelG@nvidia:

Hello Jacek,
This is by design. I replied to the thread here:

https://forums.geforce.com/default/topic/815708/geforce-900-series/geforce-900-series-maxwells-have-a-cuda-performance-problem

We are looking into ways to filter out apps that use CUDA but not for computational work that would require the same level of precision and allow them to run at the full clock speed of the memory but at this time I do not have an ETA.

Best Regards,
Manuel
NVIDIA Customer Care
NVIDIA Knowledge Base - http://nvidia.custhelp.com/app/answers/list
NVIDIA GeForce Community Forums - https://forums.geforce.com
NVIDIA Find Us Online - http://www.nvidia.com/object/nv_fuo.html

 
 
Nvidia forums:

This was also true on Kepler as well. When it comes to gaming, having the absolute fastest performance is one of the most important features of a gaming graphics cards, for those who use CUDA for computation or similar tasks, precision is the most important factor. This is why Quadro graphics cards run at a lower clock speed than than GeForce cards or Intel Xeon processors run at a lower clock speed than their consumer Core processors.

Jackos
With some help from a guy @ overclock.net I managed to fix this issue using Maxwell BIOS editor:
You need to edit Clock States -> P2 -> DDR set to 3800 (or 3500).
 
Now folding at full speed ;)
 
 

 
Thanks I'll consider that, sorry about the delay in replying, I've been on my hols  :)
 
I've looked at your photo, but its doeas not help.....did this have any effect on the ppd?  :)
 
 
 
Also I have email jacob, to see if EVGA is willing to amend the bios to resolve this  :)

errrm 2 weeks and no reply from Jacob :( I'll bump this and resend the email :)

After several re-installs and an RMA I think I've finally found a work around as I've finally been able to get my card to run at the correct speed for all games so far. 
 
 Normally after I install the drivers I would enter the nvidia control panel and make changes ex: performance etc. This time around I made sure to NOT enter the control panel at all. Now all of my games run at the proper memory speed even after several reboots! 
 
For those of you that are/were having this problem could you give this a try and report your findings? I don't know if it's entering the control panel that causes the problem OR something that's changed in the settings but what I do know at least for me as long as I leave it alone everything is running as it should be.