To those saying it's just a simple console port...
I think people forget Metro 2033 is the current system crusher and is also available on the 360. Just because it's also on a console doesn't mean it's not going to be optimized to make use of the PC's current technology.
Here is Metro's requirements. I'm guessing Crysis 2 will be about the same.
■Dual core CPU (any Core 2 Duo or better will do)
■DirectX 9, Shader Model 3 compliant graphics cards (GeForce 8800, GeForce GT220 and above)
■Any Quad Core or 3.0+ GHz Dual Core CPU
■DirectX 10 compliant graphics card (GeForce GTX 260 and above)
■Core i7 CPU
■NVIDIA DirectX 11 compliant graphics card (GeForce GTX 480 and 470)
■As much RAM as possible (8GB+)
■Fast HDD or SSD
Enabling 3D Vision
Metro 2033 utilizes NVIDIA 3D Vision with compatible cards and hardware. To play in 3D you will require:
■NVIDIA GeForce GTX 275 and above recommended
■A 120Hz (or above) monitor
■NVIDIA 3D Vision kit
■Microsoft Windows Vista or Windows 7