Graphics performance should be ok, not great, but ok on most graphics heavy applications. Games like Halo might have to be played at a slightly lower resolution due to the limited graphics memory.
How does the screen size compare to the MacBook Pro? Well, um, it's smaller, I think. 13.3 < 15.4. Other than that, they are both the same type of screen in that they're both TFT. The MacBook has a glossy screen that you can't order any other way, and the MacBook Pro you can order to be matte or glossy. I'd go with the matte, but glossy should be ok. Try before you buy.