i'm with plec my 4850 performs extremely well on crysis, admittedly i don't try AA at 8x but im running DX10 at 1680x1050. My version isn't even overclocked. it's playable even on intensive scenes admittedly i have more ram and a quad but i can't say the 4850 itself struggled, if anything lets me down it's the fact my q6600 is at stock. at that resolution it will be great. Will run on high with some AA, the exact amount you'll be able to work out with a little trial and error. Only thing that let's your system down slightly is the 2 gig of ram but even that shouldn't be that much of an issue, if at all.