Rumours has it that ATI's new card will definitedly not top Nvidia's current high-end cards. The 3800 cards will probably be selling at a lower price to compete with Nvidia.

However, percentage doesn't mean a thing. We want absolute numbers. e.g. ATI 30fps, Nvidia 33fps - so nvidia wins by 10%..... 

Another thing about DX10.1. Have you guys heard? Apparently, for DX10.1, the AA will be running at 4x. You can't turn it on or off manually. Dunno. That's what I read. Would really kill the fps in lower end systems......