The "8nm" thing appears to be more leaker bullshit, going from an actual looking leak of a LinkeIn profile whole thing is just an unsurprising Ada + whatever ARM cores on some sort of 4nm, don't know if it's Samsung or TSMC.
Regardless upscaling is already super prevalent down onto the Series S. So all DLSS is going to do is be somewhat better than current FSR in motion. It'll still be a "60fps on Series = 30fps on Switch 2" kinda deal, at least in mobile/undocked mode.
A complete redesign of the SMs would cost much more than the small bits the tensor cores need. It makes no sense to leave them out, especially if it's based on Orin. They will have the same Tensor Core ratio as the other GPUs of the hardware gen they choose. Nvidia can probably scale DLSS Inference requirements down. A bit worse quality, but less time needed. Especially for 30 FPS thats not a problem, 60 FPS and higher will be more of a problematic. but i can't imagine Nintendo targeting high framerates.
Ok but what about RT cores? How many would it have? To dedicate that much die space to RT & Tensor cores on a mobile GPU seems kind of suspect. If we look at the steam deck’s apu, it only has 8 cu’s. I don’t think we can expect many sm’s in the switch 2 apu. If die space is dedicated to RT cores and sm’s, it comes at the expense of the base GPU performance no? Furthermore, does it make sense to put only a few RT cores on the switch GPU? It’ll basically useless in the grand scheme of things? Certainly it won’t be enough to do RT reflections/gi/path tracing?Even on the smallest GPU utilizing the first gen tensor cores(RTX2060), DLSS is perfectly viable with near enough the same cost in performance as any other RTX part. I think it shows that DLSS on its own is really not that demanding from the tensor cores.
And if you're choosing an affordable old process like Samsung 8nm, going with a larger die size in general for a bigger GPU should be viable.
I can see it all making sense. I still dont like the idea of it being on such an old process, but Nintendo doesn't tend to go too ambitious on hardware so definitely think it's possible.