Wii-U's gpu is called Mario, and AMD named it that over 4 years ago.

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RicardJulianti said:

snowdog said:
Going by the die shot of the Wii U's GPU there's been so much customisation that the original GPU it's based on is completely unrecognisable. There's still over a third of the silicone that's a complete mystery, and the two thirds that people have 'worked out' is complete guesswork.

This.  I've read just about every page of that thread on NeoGAF and it basically boils down to...."Well, we don't know what the hell this thing is." Our only evidence as to what it is capable of will be games. The best thing we have to go off of at the moment is either the Shadow of the Eternals demo which was made by a small dev team, and is pre-alpha/alpha.....or X which was also pre-alpha/alpha. 

Nintendo's E3 based Directs are going to be incredible. Just try to imagine what EAD and Retro will be capable of using those 2 games as a jumping off point.

The E3 2011 Zelda demo is also a pretty good teaser of what Latte (that's it's real codename) can achieve. We haven't seen anything close to that or X in any of the games released so far, devs are new to it, and most haven't even bothered to try to push it.