It is today that ATI should officially announced its last GPU, Radeon X800, and we should see benchmarks/test everywhere on the web.
By mistake
Tom's Hardware had released yesterday its last article featuring a deep analysis of the Radeon X800. It has been quickly removed, but it is now officially available here :
ATI Radeon X800
To make this story short, it seems that ATI is leading again the Graphics Performance War over nVidia GeForce 6800...
ATI a mis en ligne de nombreuses démos technologiques. Il y a en bien entendu au format Quicktime. Attention, elles sont énormes !
http://www.ati.com/developer/demos/rx800.html

Now we only have to hope that Apple will quickly install this new ATI GPU in the next PM revision which should be around the corner. Indeed it would be difficult to imagine a Radeon 9800, even the XT version, for the high-end PM models...