I recently updated my 3 folding rigs to 334.89 WHQL.
My PPD has dropped SHARPLY - but it's too early blame this version of the driver.
It could be a rash of poorly designed WUs that got into the AS hopper (some of which take over 24~72 hours to complete on a GTX-770 or GTX-690)!
Nvidia pays a lot more attention to the gaming community than it does to us DC/HPC folks; so any improvements they make are going to be geared almost exclusively towards gaming performance, while DC/HPC concerns would likely be regarded as lower priority.
It might also be the case (but has a lower probability than crappy WUs) that some of the functionality may have been
mis-tweaked by Nvidia.
It's too early to pass judgment, but it *IS* appropriate to closely watch folding performance under this version of the driver.
For me, I cannot fall-back because there was something funky in the prior version (327.23) causing intermittent problems with the display freezing-up.
334.89 cured the freeze-up problems.
I have the following GPUs:
- Rig-1: Two GTX-690s (operating like four GTX-680s)
- Rig-2: Two GTX-660ti
- Rig-3: One GTX-770
Before the upgrade, I was averaging about 550,000 PPD over the past few months.
Now, I am lucky to get 150,000 PPD - but I cannot tell if it is due to the driver, or [coincidentally]an influx of poorly designed WUs.
If anybody has accurate before/after stats (same WU project [
PRCG]) or running side-by-side (same GPU type & WU project, but different drivers)
where the results are obvious and definitive, I think we'd all like to see those.
PLEASE POST if you have solid info - Thanks!