The Wii U will be powered by an IBM-made CPU made up of three PC Power cores and an AMD series 7 GPU, with 1GB of memory available to games. That's according to what developers have told Eurogamer.
Apparently the Wii U's graphics processing unit is a custom AMD 7 series GPU. Clock speed and pipelines were not disclosed, but it does support DirectX 10 and shader 4 type features. The CPU meanwhile is said to have a lower clock speed than those offered by the PS3 and Xbox 360's CPUs.
"Wii U has a powerful GPU with more oomph than the rivals - and is more modern in architecture and shader support, which may come in handy later on.
"The CPU on the other hand is a different question. We are not limited by it but some other games might suffer from it. Still, because of the GPU, I expect most multi-platform games to look the best on Wii U, even if the difference might not be huge sometimes."
Nintendo of America is holding a conference regarding Wii U on September 13. So we'll probably find out more then. Who knows, we may even finally get a price and release date.