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Zippy6 on 23 April 2025
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HoloDust said:
curl-6 said:

Oh I know it's not magic, but compared to Switch 1 where we often had to deal with sub-HD resolutions scaled up with TAAU/FSR alone, it should be a massive step up.

Should also help with games that are too demanding to for decent native resolutions, like say something that is already pushing more powerful console hardware and so would otherwise be impossible to pull off on Switch 2 at an acceptable level of quality.

Oh, certainly - I don't have exact numbers, so it's just a rough napkin math based on 3060 Ti and 3090 official numbers for DLSS, but I'm guesstimating they need to render at 69-70fps @540p for DLSS Performance to achieve 60fps @1080p, which is some 14-15% hit compared to native 540p...still way, way better than native 1080p, which wold be ~50% hit, or worse.

The T239 in the Switch 2 supposedly has 64 Ampere Tensor Cores, the same as the RTX 2050 Laptop, so it's basically going to be slow with it's DLSS processing compared to the majority of DLSS capable GPU's. Unfortunately the T239 does not have the Deep Learning Accelerator the T234 had, which could have greatly reduced the overhead of DLSS on Switch 2.

Scaling from 720p to 1080p with DLSS is a 12% performance hit on the RTX 2050 Mobile, I assume 540p to 1080p takes more out of the tensor cores so yeah a 14-15% hit in performance going from 540p to 1080p may be about right.

But really with the low number of tensor cores and the lack of the Deep Learning Accelerator it seems for the most part DLSS is going to be used to scale to 1080p, occasionally 1440p and 4k almost never. The performance hit using DLSS to upscale to 4k on the RTX 2050 Mobile is huge.

Nintendo/Nvidia didn't go all in on DLSS for the Switch 2.

"T239 may share the same GPU architecture as T234 - the Ampere architecture used by Nvidia for its RTX 30-series graphics cards - but everything else is all-new. The deep learning accelerator and ARM Cortex A78AE are gone, while the 2048 CUDA core GPU is slimmed down to 1536 cores."

Still for 1080p gaming it's going to be great, and handheld will especially benefit.