I agree, 64bit is needed. 64bit doesn't have a performance decrease over running 32bit like DX10 does over DX9. I am running DX9 mode on Warhead and I really don't find it that much more optimized than the original Crysis. Sure, at some points I hit early 40's instead of mid 30's, but at graphically intensive parts like explosions etc it still dips into the early 20's just like the original Crysis did. Like Mascaras noted, 25fps was very playable in the first Crysis. In Warhead, the same fps doesn't nearly feel as smooth. you need at least 28-30fps+ to feel like the first one. So far the game starts out pretty action packed. I enjoy it, but wouldn't recommend it on these so called performance increases alone.

I too am hoping for a new driver, but with the original Crysis already being out for almost a full year now, how much more can they squeeze from this engine that hasn't been done already? With Warhead being nearly identical, I'm not expecting miracles from either video card camp.