As I said in different thread...this is "just a tablet":
Pixel C, 7mm thick, with Tegra X1 inside with peak clock of 850MHz (as opposed to Shield TV box which is clocked at 1GHz)...so that's 435GFLOPS of nVidia goodness in "just a tablet". Passive coooling.
Opposed to that, NS is fat piggy, 14-15mm thick...with vents...and possible active cooling.
In theory (again, in theory) there might be X2 inside (built on 14nm) running at 850MHz while in handheld mode, for those 435GFLOPs and running at 1.5 GHz when docked (because it can), for 768GFLOPs.
In even wilder, but not so wild scenario, there is another posibillity - X2 times 2 (a la PS4 Pro):
"...we doubled the GPU size by essentially placing it next to a mirrored version of itself, sort of like the wings of a butterfly. That gives us an extremely clean way to support the existing 700 titles," Cerny explains, detailing how the Pro switches into its 'base' compatibility mode. "We just turn off half the GPU and run it at something quite close to the original GPU."
Now I highly doubt this is what Nintendo went with, given that it would cost them pretty penny, but it is a solution. Of course, this is all just having fun guesstimating.
