X1 is 1.5 years old and will be more than 2 years old by the time NX releases
Pascal is ready and ships within days and 14/16 nm for small chips have been ready since September, going 28nm (20nm?) with a gpu architecture from 2014 today would be so bad but it would also be such a Nintendo thing to do.
This is the Pascal-based Tegra architecture for Nvidia Drive PX2
Probably not outdated either, unlike Tegra Parker that was based on Maxwell. Nvidia could probably "Nv-Custom" anything they want for Nintendo, almost as easily as AMD does semi-custom.
Anyway, it would be extremely interesting if Nvidia got the Nintendo handheld GPU deal and AMD got the Nintendo home console GPU deal.
Or Nvidia got both. Or this is all BS. Or Nvidia lost *again* and AMD is getting everything.
or Imagination Technologies swooped in with PowerVR and steals a deal or every deal. I think they're in every iOS device ever made, not to mention some of the other mobiles