I know both my CPU (Core 2 Duo E8400) and my GPU (ATI HD 5770) are borderline for a good performance in Crysis 2, and I have the feeling that my CPU is the main bottleneck, but I'd like to know the opinion of other players with dual core CPUs.
Somebody with a stronger card and a similar CPU is happy with the performance?
Give this thread a read. It gives some perspectives (generally speaking)
http://forums.steampowered.com/forums/showthread.php?t=1814754