Originally posted by: thilan29
How about YOU go test your card at 90C+ (go even higher...how about 120C) and get back with some results. There's a reason why GPUs crash with higher temps. You can ask me to test it but I'm sorry mate I won't purposely run my GPU at 90C+. Like it or not excessive heat hampers the performance of GPUs, as well as CPUs...and I think it's generally accepted (at least by most people here) that once you go above around 80C (60C for CPUs), that's getting fairly hot.
This is a good test:
Turn your fan speed as low as possible and run something like AtiTool artifact tester or RTHDRIBL to get the temperatures up and see if it crashes or starts artifacting. Now turn the fan up and run the same test. I'm willing to bet you'll get artifacts or crashing in the first test. If you don't well then maybe you'll fine running it at 90C+, but I still wouldn't do it.
For an example of what happens when the card overheats:
http://forums.anandtech.com/me...=2116189&enterthread=y
His solution: turn up the fan speed to prevent his card from overheating, in this case 90C+