TechArp has a review of mobile graphics processing units you might want to keep a link to.
Yeah, I know; one would be hard pressed to find a more boring subject. At least until it comes time to think about buying a laptop or notebook, when it becomes a lot more interesting, or at least more important. Gail's recent notebook purchase was made with close attention to graphics parts and she is very, very pleased with the result. Well, here is at least most of the information she used in her decision in one place.