Was having the issue with this card, with a previous PSU. Different Motherboard, even. Almost all the parts on this build are new (Within the last year.), GPU with OpenGL is the only thing having hiccups.
Windows versions haven't made a difference; OS installed on HDD, or either one of my SSD's haven't changed anything.
Driver Updates for my card only go back about a year for Windows 10; Using the earlier driver hasn't changed a thing.
I have not tried a different BIOS update.. .Not sure if my card has a switch for multiple Bios's.
I'm thinking at this point it is just one of the many problems nVidia has been having lately with their long list of ignored & known problems with no ETA's on fixes. :S
Don't think I can return the card, may be too long for that. But it should still be in Warranty... Got it last Spring / Early summer, I think.
EVGA GTX 960 FTW Edition ACX 2.0 2Gb.
The GPU tool I've been currently using has been off of Steam;
EVGA PrecisionX 16 x64, Version 5.3.11
My GTX 660 seems to be solid with OpenGL with no issues on my system; But it is a significant difference in performance on my system.
This was after running Fallout 4 on Ultra, WoW on Ultra, Tomb Raider (Benchmark) on High, Elite Dangerous on Ultra, and Rainbow 6 Siege (Benchmark) on Medium-High.
<pic removed for space>