The AMD graphics is a 6630m with 256mb vram. BF3 requires a 512MB card to run well, but it will run on low settings. Depending on your tolerance for low FPS will of course matter
I manage to do 40-50 FPS on a GTX285 with 1024MB VRAM at high with some medium settings.
MW3 is not that demanding, I have a friend that completed the game on a 256MB 8400GS, it ran at 20-30 FPS on lowest settings, for me that would be unplayable, but it is possible. The 6630M is more than twice as fast as the 8400GS.
Here is a benchmark from notebookcheck.net:
As you can see, it runs, albeit a bit slow, on low settings in BF3 and runs pretty well in MW3* at medium settings.
THe card is not tested with MW3, but Black Ops uses same engine and results should be comparable.
