Seem to be some common Mhz numbers coming up with these cards...
My 670FTW boosts to 1202MHz @ 61C (fan speed 3660RPM) with stock settings but voltage turned up. I can't get the GPU clock offset higher than 18MHz without it actually reducing the top boost speed to about 1080MHz with a lot of flapping....if I have it anywhere between 13-18MHz it sticks at a steady 1215MHz, seems that's the max my card can go GPU wise. The memory seems much more forgiving, have it at +600MHz without visual artifacts at the moment, not sure where the limit is exactly because I'm still messing with it. Temp increases a little to aroun 64-65C with these settings.
Benchmark Unigene Heaven (max, 16x AF, 8X AA, 1980x1200):
Stock settings + max volt = FPS:49.6 Scores:1249 Min FPS:21.2 Max FPS:123.4
GPU+18Mhz Mem+600Mhz + max volt = FPS:50.9 Scores:1282 Min FPS:26.5 Max FPS:128.2
3D Mark 11:
Stock settings no volt change = 3dmark.com/3dm11/3800495
GPU+18Mhz Mem+600Mhz + max volt = 3dmark.com/3dm11/3801671
CPU is an i5-3570K on an MSI Z77A-GD65, I had it at 4.5Ghz for the first 3D Mark test and OC Genie II was on auto (so 4.2Ghz I think) for the second test.
<message edited by mittell on Tuesday, July 03, 2012 3:13 PM>