How good will one overlocked GTX 460 perform while gaming on a single 1920x1080p moniter?

Seems like a great deal in my opinion for it's specs and if games get to where they won't run at max settings anymore I could just run 2 in SLI, but my question is how well will one perform on games like Crysis, Crysis Warhead, Crysis 2, and other games like these? What kind of frames should I expect running one 1920x1080p moniter with max settings?