This specs are far beyond any graphic application needs in game or graphic computing industries... But in a world were looking ahead is the key to guarantee your stability and innovative status, AMD/ATI might be searching for a higher ground.
*cough*moore'slaw*cough*
Although there is evidence of a new series development, the information is unofficial, so it might be based in speculation and suppositions.
I'm sorry but I'm not believing either of these :P The ATi Chart looks too shabby, as it looks like more of a fan concept (Well, it probably is.) Also as for the nVidia, I have to go with R.Paes and say that I don't necessarily trust that site, I will, however though wait for an official announcement from the nVidia (And ATi) newsletters.
As R.Paes also believes I'm sure, I'm not gonna believe it until it's from the actual companies. :P
While they are impressive, the GTX300 one with GPU-Z Open almost leads me to believe that it's just edited. It looks just more like a overclocked card that's already out with just some numbers tweaked within the program, which can be done.