IBM opened the lid a tiny bit about what Wii U's CPU is like and AMD had something to say too, even if not much.

Contacted by Engadget, IBM revealed that Wii U's CPU is a "45nm custom chip with "a lot" of embedded DRAM" and it's based on the technology Watson used. No, not that Watson, the supercomputer that won Jeopardy some time ago, remember?

Watson runs on a version of Power 7, a processor that has from 4 to 8 cores, but if this is indeed true, it would be a custom version of the CPU. Most rumours are pointing to 3 cores, the Watson for example, uses 2880 cores.

On the GPU side, not much is known, but AMD confirmed that they're the ones behind it via a press release. This surprises no one of course.

Since we didn't hear it straight from the horse's mouth, this is certainly not confirmed, but if true, it might be a sign of good things to come, since we are talking about a very capable CPU.