If its powerful enough, probably an emulator would be feasible. Without needing any hardware crutches a-la ps3 x ps2
Currently there's YUZY that emulates switch but it's still in very early developments
What kind of hardware requirements does that emulator have?
Good to know it exists. Even if only as a proof of concept.
Would emulation require an XBoxOne style of BC, or would there be no legal hurdles for Nintendo to emulate an Nvidia SoC with different hardware? I.E. Are Microsoft's legal dealings entirely to do with the terms of the game initially being tied to a single platform, or is the alteration /emulation of code a factor too?
One should immediately doubt the assumptions of the power consumption when suggesting a handheld can comfortably run ports of current-gen home consoles consuming >100 watts. If what you say is viable, that suggests that every generation, a portable could have been made by shrinking the console hardware one node and clocking it low, which has never been even remotely possible. Even three node reductions isn't enough. A launch PS3 consumed ~180 W playing games, while a PS3 slim from 2013 draws ~70.
You're quite right, but the power consumption seen by some 14nm Raven Ridge APU's is quite promising. There are 15W APU's with higher clockspeeds than I suggested, albeit with something like 8 or 10 Vega CU's. So I think it's within the realm of possibility that a 5nm AMD Switch 2, when portable, could surpass the launch PS4 in terms of clockspeeds, raw TF, and bandwidth.
If so, we'd potentially be looking at a 2TF portable VS 10TF home consoles, with near identical architectures. I think that's a small enough difference to make ports viable.
Some games, maybe plenty, still won't be able to have enough stripped from them in order to make up the gulf between a 2TF system and its 10TF counterparts. But lowering the resolution from reconstructed 4K to reconstructed 1080p, dropping the draw distance, texture resolution etc would probably be enough for a good deal of games.
Maybe we'd all get lucky and 60FPS would become the new standard for most PS5 and XBoxNext games, so that halving the framerate would make it that much easier to port to the Switch 2
The latest agreement between AMD and Samsung to share the RDNA IP for mobile GPUs seems to dictate they can't compete on the same markets.
That means Samsung probably can't make SoCs above 10W, and AMD can't make SoCs below Raven Ridge's current 15W minimum.
So AMD can do APUs for large tablet form. Anything below that and it's Samsung territory.
15W Switch 2 here we come!