Wii U will be powered by a CPU which features three IBM Power PC Cores, an AMD series 7 GPU and 1GB of memory available to games. The console’s CPU is apparently formed of three IBM Power PC cores of an undefined clock speed, though reports suggest this to be lower than the Xbox 360 and PS3. The developers also say that the machine has 1GB of RAM available to games which is approximately twice that of the Xbox 360. The GPU is a custom AMD 7 series, supporting shader type 4 and DX10 type features, with embedded eDRAM.
“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.”