crysis isn't very graphics card limited, its the same as 99.99999% of games, a wolfdale/yorkdale will show nothing noticable in gaming difference to any chip you can get now. a wolfdale is completely pointless compared to a plain old conroe also, once you get past 2.4Ghz most games don't show a difference, on the odd game that does you go up to 3Ghz and theres maybe at that point 1 game that will make a difference beyond that. these are speeds that pretty much any dual core chip can do with ease.
gaming = gpu + ANY £50 chip.