I'm not fan of handheld gaming, but I like NS concept from the technical side, so I'm eager to see what they've put inside.
If Pixel C can run Tegra X1 @850MHz built on 20nm in 7mm thick case, it's fairly certain that 14-15mm thick NS can handle X2 built on 14/16nm running at least at that clock, and most likely higher.
Of course, as I said on numerous occasions, in theory it's even possible there is something like PS4 Pro's GPU approach in NS - "First, we doubled the GPU size by essentially placing it next to a mirrored version of itself, sort of like the wings of a butterfly....We just turn off half the GPU and run it at something quite close to the original GPU (in PS4 mode)" - so, again in theory, custom X2 x 2 @1.5GHz for docked, actively cooled mode and just one downclocked X2 for handheld mode.
That said, this is just a wild theory, knowing Nintendo it's very unlikely they went with that, but I'd love to see someone (Sony?) trying to pull something like that off.
