MW2 pc video card for notebook?

Does anybody know a video card that will work for a G62-455DX Notebook PC that will work on modern warfare 2? i checked canyourunit.com and it said my video card will not work.|||Nope, as most Laptops and Notebooks DO NOT have an interchangeable graphics card. That most likely includes yours.|||I recommend a NVIDIA GeForce GTX 580M SLI, it's performance is very high and is cheap for what it offers