Which one is better? Will which ever one play High-End games on Ultra Specs at at least 70 FPS. Right now I have a GTX 550ti and that gets me 60 FPS on Mafia 2 with some settings medium and AA off. I'm looking to spend the least that I can so as long as the 600ti can put up decent FPS with Ultra settings and AA on then that should be good.Thanks in advance guys.