I run CoD4 on an integrated chip. The X3100. With a modded config, it runs great. However, it cannot truly compare to an Nvidia graphics card (specifically the ones in the unis) so if you want the best experience, that wouldn't be the best choice.
I'm quite happy to run it well personally. Graphics suck though.
so basically if i run everything on low graphics the game should be able to run!?...nice ive just been using it my macbook for autocad and 3d BUT I WANT GAMES haha!