At least there's some kind of assertion I can pick up from is:But the formula is 2x = 5x. So that's what you need to solve.
WiiU will have a siginifactly different architecture from its competitors. But hopefully they won't be lacking in the established rendering standards this time (tesselation, etc).
The big question is ease of development and how having to port pre-existing code from other systems will work out.