I believe he is right about the retail cards, and I knew the R700 was a high end card when it came out because they based the next generation cards off the R700 so it had to be a pretty impressive card. However, with knowing that, I have always said ATi/AMD/Nintendo started with that base -- the base that ATi started with for their 5xxx Series -- and went from there. So they could have added anything, probably fixed the heat issue this guy mentioned (he kind of hinted they probably tinkered with the card) and truly, no one will no anything until we see it in action.
But if I say that for Nintendo, I would be highly hypocritical if I didn't assume the same with Microsoft and it's "720" (which I somewhat doubt will be it's name, but since Microsoft spent money advertising that name who knows). They stared with the AMD 6670 and went from there. Nintendo might have had a better foundation, but if you skilled enough (and ATi has always been my choice when it comes to video cards, so I believe they are highly talented) you can make a good building even with a somewhat weak foundation by reinforcing the building and tinkering with what you got.
However, the whole basis that Microsoft would choose a low end card to start with is somewhat disappointing, and very odd. And to tell you the truth I would go even further saying Microsoft choose HD 5570 and 5670 which is what the 66xx series was based off. Why? Because if they choose the 6670 then they are seriously behind. That card was released in Feb 2011. The 55xx and 56xx series however was released in 2010 and the birth of the 720 GPU probably started with similar beginnings as the 55xx Series.
Which is kind of funny, if you think about it. That means the 720 is somewhat related to the Wii U, at least GPU wise, because what Nintendo started with ATi went on and created the 5xxx Series, and thats what the 6670 was based off of.
If the GPU is better then that's great, but it's not everything. I'm thinking that they mean Xbox 720 is 20% more powerful overall. Though if the Wii U's GPU is better, then that pretty much eliminates most major obstacles to putting multiplats on the system. So we shouldn't have anything to worry about if the rumoured specs are true.
Well, based off old rumors the Xbox 720 has a six core ARM processor. Which means low power consumption -- similar to this GPU rumor -- and although it will be capable of impressive 1080p graphics, I don't know if it is more powerful then the POWER7 tech that the Wii U is based off of. But again, the 720 info is filed under rumor and I somewhat doubt it's 100% true.
Whovian12 -- Nintendo Network ID.