My computer can run Crysis on medium...but it is also my old computer that I set aside a year ago when I bought a new rig that is currently getting a mobo replaced. The whole, "You need a supercomputer to run Crysis" thing was blown way, way out of proportion. You could run Crysis on a relatively weak computer, even way back when it was first released. Not on max settings sure, but high enough to be damn pretty.
When I get my proper computer back, I can run Crysis on Max, and Metro on...I seem to remember it was close to max with a solid frame rate. Probably need either more RAM or "More likely" a better video card to go higher.