Intrinsic on 13 March 2017
the only way this happens is if sony comtimues with support for the PS4 through out the life of the PS5.
With 7nm tech, they could make the PS5 be its 12-16TF GPU console in a chip size about the same as what we have in the PS4pro today, and if somehow using the same tech onthe gPS4 chip they can drop that to about half its size.
It would be easy to put that into a handheld/tablet form factor. At that point, sony can have devs make a version of all their games support native 720p for the "PS4 portable" all the way up to 4k for the PS5 home console.
Ideally thats how it would be done, but realistically its nowhere near as simple as that. There are limitations.......
