Is there enough info out there to get an idea of how powerful the next Switch would be? Relative to the PS5/XS or relative to other Nvidia products?
This podcast made by Resetera / Famiboards members zombl3, Dakhil, Alovon11, and 10k goes in-depth about the Switch 'Advance' possible specs from the Nvidia leak (24:18):
It's a good listen. What I've gleaned is in docked mode, like a PS4 Pro with DLSS. The leak didn't tell us about CPU configuration or the process node so we still don't have a complete picture, but the GPU is rather capable. The leak shows 12 SMs (streaming multiprocessors) when many speculated 4 - 8, vs. the original Switch's 2 SMs.
Another comparison:
Switch Shader cores: 256
PS4 Shader cores: 1,152
"Switch Advance"* Shader cores: 1,534 (plus 3rd gen Tensor cores, and 2nd gen RTX cores)
PS5 Shader cores:. 2,304
This is looking like a much smaller gap than last time.
Of course this is just one metric, one piece of a puzzle, and nvidia cuda cores and amd streaming processors aren't direct equivalents, however, that piece has to go with the rest of the puzzle, so while we don't know the specifics of everything, we do know Nintendo did not pay for this 12 SM gpu and then cripple the rest of the system just to pull a fast one on the ol Internet.
* Switch Advance is what I'm calling it because I like this name.Switch: 256 shaders
Xb Durango 768 Shaders
"Switch Advance": 1,534 Shaders
XSs:. 1,280 Shaders