Re: best 6800/7800 under $400?
No, the 6800ultra 512mb will NOT outperform the 7800gt. Pixel pipelines will have a better effect. Plus, higher clock speeds. At least to my understanding. Somebody correct me if I'm wrong. The equivilant of a 6800gt is an x850xt. The 512mb version I guess. Or an x1600xl. Either one.
Macbook Pro and Logitech z5500s. All you really need.