Okay, so I have the Asus GTX 560 Ti Top GPU (900 factory clock) Able to play any of my games on max settings @ 60fps+ with no issues. I also have a GTS 450 set up temporarily for physics until I sli the 560 Ti. I can play witcher 2, shift 2, dead space 2, assasins creed 2, ... (needless to say...