I still wonder if a Tegra X2 can match up with an older Nvidia mobile GPU ... like lets take the Nvidia 830M from 2014:
This is a laptop GPU, Nvidia 830M specs:
DDR3 RAM (64-bit memory bus), 14.4GB/sec
256 CUDA Cores, 16 TMUs, 8 ROPs
Maxwell Architecture, 28nm
554 GFLOPS floating point performance
Under 25 watts power usage
The Tegra X1/X2 (custom Nintendo chip?)
LPDDR4 RAM (128-bit memory bus?) 51GB/sec
256 CUDA Cores, 16 TMUs, 16 ROPs
Pascal Architecture (?), 16nm FinFET
625 GFLOPS floating point performance (Tegra X2 supposed performance)
16 Gigatexels/second (Tegra X1, X2 could be better)
16 Gpixels/second (Tegra X1, X2 might be better)
A Nvidia 830M is capable of running a lot of PS4/XB1 ports even at pretty decent resolutions ...
Batman Arkham Knight 1366x768 resolution; 30 frames per second (PS4/XB1 only title):
Assassin's Creed Unity: 1360x768 resolution (PS4/XB1 only game):
Star Wars: Battlefront:
I mean in portable mode these games wouldn't really even have to run at this high of a resolution, 1024x600 or even 960x540 would be good enough for a little 6-inch display. I hope Nintendo really pushes this Nvidia tech, though I half suspect they'll just kinda settle for so so performance.
I think it's possible Nvidia will change the 1:1 ratio of the TMU's and ROP's that's on the X1 for X2.