We’ve heard that Radeon HD 4850 will be positioned against G92-based 8800GT and that Radeon wins in this performance game.
Nvidia sells 8800GT at a U.S. suggested e-tail price of $179, and we believe that ATI will match this price with RV770PRO or eventually sell it for $10 less.
Performance-wise, RV770XT aka Radeon HD 4850, should completely win against 8800GT and we also heard that it should win against non-overclocked 9800GT cards, but we still don’t know the overclocking limits of 9800GT cards, as these might end up faster than ATI’s offering.
8800GTX/9800GTX will win against Radeon 4850, but they are the other price category that is much closer or level with the price of Radeon 4870.