From a review:
Crysis 2
The graphically opulent first-person shooter makes the GeForce GT 555M work up a sweat. Crysis 2 stutters massively when using 1920x1080 pixels and the setting Extreme (version 1.2, no DX11). 12.3 fps are remote from a proper image buildup. The situation improves significantly with very high details and a resolution of 1366x768. 35 fps should be enough to satisfy a few users. AMD's Radeon HD 6770M feels even more comfortable with these settings: 40.8 fps (HP dv7-6101eg) equals a plus of respectable 17%.
Recommendation: 1366x768 | highCrysis 2
Resolution Settings Value
1920x1080 Extreme 12.3 fps
1366x768 Very High 35 fps
1024x768 High 47.3 fps
Set on high/very high settings and you'll be right