Actually Crysis2 ran well when I was using WinXP, but after I had installed Win7 for my PC, I found that Crysis2 MP seems can't run smoothly.
I'm using Intel Core 2 Duo E7500, 4GB ram(DDR2), GTS450 512MB(DDR5), isn't it is the problem of the CPU or ram?
I'm considering install WinXP again just because this game... but it sounds silly, isn't it?