Quote Originally Posted by Volkaru View Post
Yes, one of the cards I tested this with was a GTX 660. Instead of slowing down to 1-2 FPS and crashing, it would instead disconnect the display for up to 30 seconds. After that I noticed a marked performance drop, but no crash. Still pretty bad, though.
Sounds like a driver TDR for the GTX 660. For this one it would help a lot if you listed which driver(s) you tested with as some versions had issues with TDR. (In some cases people had to roll back to earlier driver, other cases upgrade to newer driver, but still very much a driver problem.)