http://uk.ign.com/articles/2012/01/24/xbox-720-will-be-six-times-as-powerful-as-current-gen
"Following initial reports from tech blogs Fudzilla and SemiAccurate, our sources have confirmed that mass production of the system's GPU will indeed begin by the end of 2012 but will not, however, be based on AMD's 7000 series Southern Islands GPU. Instead, the processor will be derived from the 6000 series, which was introduced last year. More specifically, it will be akin to the Radeon HD 6670"
"In real terms, the Xbox 720's raw graphics processing power is expected to be six times that of the Xbox 360 and will yield 20-percent greater performance than Nintendo's forthcoming console, the Wii U."
Some very important things pop out here:
1. IGN confirmed the story independently from the original rumor, which makes it much more likely.
2. The GPU isn't 6 times the processing power of the 360 if it's a HD6670, it would have to be a very customized part, because 6x the 360 is 1.4Tflops, not the 768 Gflops from the HD6670, so I am guessing 6 times is an overall performance increase. (faster cpu/ram/gpu)
3. If it is a custom part based on HD6670 and is 20% faster than Wii U, that puts the performance of the Wii U close to a HD6570...
If you stop thinking about Gflops and start thinking about fill rates and other aspects, it would be much easier to hit that 6times statement.
I think no matter where Wii U actually ends up, the entire industry is going to be surprised where x720 ends up, and that to me, is all that really matters, Wii U and x720 being closely comparable (inside x2) it won't matter where the PS4 sits, even if it goes insane with 1200% faster than PS3, it won't mean anything to 3rd parties, they will just up port their games to the system, the largest console(s) base directs development.
BTW I am not saying Wii U will use a turks GPU, it will just perform around the level of an HD6570 which I believe is what trinity is targeted around (so my earliest estimates are possibly right)
Arkam if you are reading all this mayhem maybe you should try to get a better idea of what Wii U actually has inside of it, if you aren't a software developer it's easy to mistake the sort of power you have there, I am starting to believe that you simply heard some basic specs and thought that the next gen would crush it, then maybe heard something like Xenos has more memory bandwidth (256bit vs 128bit) and targeted that to make your statement true.
I think Nintendo has a lot to reclaim this next generation when it comes to tech, Gamecube was a marvel, so much so that its tech stayed with Nintendo for 11 years.
It was risky, and I doubt it could ever happen again, but Wii U won't be a Wii.