Even though it's supposed to be a custom design, I really don't expect THAT much on the CPU side. Truthfully, I 'want' to believe that they are at least getting something made using Pascal. It's so much more powerful, and so much more power efficient, that I'd be hard pressed to think that this wouldn't be the time that nVidia would drop a new Tegra design using Pascal architecture (the one they've been calling Parker). Even if Nintendo needs to use a slightly cut down version of the chip, I still think (hope) that's what will end up happening.
You don't need THAT much on the CPU side rather than on the GPU side, actually. A CPU only needs to maintain a stable framerate (something above 60fps would be nice in this case) before beginning to bottleneck. If you achieve this, you can scale it with whatever the GPU is capable of. Let's say we got an old CPU that won't deliver more than 80fps at any given resolution. Pair it with a GTX 1080 and you got yourself 4K @ stable 60fps.
That's pretty much how it works.
Last edited by Axido,