I tested:
Metro 2033 Benchmark (Needs to be worked on currently, having some issues with the program)
Unigine Heaven:
Avg fps: 55 fps (Orginally 44, but after i overclocked the base clock by 70 mhz, and the memory by 200) I went up to 55 avg fps and a score of 1331
Battlefield 3: With Adaptive Vsync, i get about the same, sometimes it levels at 60fps playing on ultra. You can see it dip sometimes to 40 or 30 but for the most part as long as you use Adaptive vsync, the game play will remain smooth.
Those are all the games i have been able to play so far.