So far so good. This card seems pretty nice.
700/1403/1103 without even really trying. Crysis, The Witcher, and Fallout 3 all seem to run fine.
The Witcher doesn't seem to run much different, it still gets bogged down to the high 20s in the Trade Quarter but for some reason I actually GAIN 2 or 3fps when enabled 4x multisample transparency AA. I know my 8800 wouldn't have been able to do that.
The difference from my 8800GTX in Crysis is pretty noticeable though. At 1600x1200 with a mix of high and custom settings in DX9 I'm getting around 35-45fps at the first Korean base in the game and it feels extremely smooth. I was impressed at how much of an increase I got from the overclock too. I alt-tabbed out of the game, set my clocks to stock and was getting around 26fps. I alt tabbed back out, set the clocks to 700/1403/1103 and I was immediately getting around 32fps! That's a pretty huge increase for just a few mouse clicks.
The temps are pretty good as well. Around 75C under load.