How Will be Switch 2 Performance Wise?

[Pemalite]

sc94597 said:

Pemalite said:

Using those Tensor cores comes at a cost of power.
There is no "extra efficiency" or battery life.

The GPU core is still pegged at 100%, with extra processing required to bolster resolution/upscaling.

What it's enabling is higher visual fidelity.

Nearly all evidence we've seen is that DLSS doesn't fully utilize tensor cores 100% of the time. Instead you see a spiking utilization pattern where most of the time utilization is low and then, when needed, it spikes up to double digits (high single digits on a 4090, but obviously the Switch 2 isn't comparable there), which is consistent with what we see when we run comparable DL models in other work loads. 

The GPU might be fully-utilized in this case, as resources are re-allocated to other parts of the graphics pipeline when saved from running at the higher resolution, or the developer could just under-clock the GPU for better battery life, as they do in lighter-weight games or as we see on PC handhelds. 

So your evidence is a reddit thread...

But even gleaming the reddit thread we can already glean some glaring issues as you failed to grasp some intrinsic technical aspects of DLSS as you lacked appropriate context in your reply.
DLSS is an algorithm with a fixed amount of resources required to run.

1) Like you alluded to... The user is showcasing a Geforce RTX 4090 with 330 tensor ops via 512 Tensor cores. - This is Turing with 2x the Tensor throughput of Ampere.
2) Switch 2 uses 48 Tensor cores with likely a max throughput of 6 TOPS.

If we assume that 1% of the 4090's is your regular loading on the tensor cores... Then that means DLSS would require about 3.3TOPS.

So Switch 2's Tensor cores are at 50% utilization, the peak exceeds the Switch 2's Tensor throughput entirely.
But this is a like-for-like algorithm, which will not happen with the Switch 2 as it likely uses an algorithm specifically optimized for the hardware limitations and characteristics. (I.E. Being Ampere and not Turing.)

That's also failing to ignore that the Switch 2 is in a walled garden and develoeprs are free to use 100% of the systems resources, regular rasterization and ray tracing will be using 100% of those resources with Tensor operations as an added extra on top.

And the battery life reflects this as battery life on Switch 2 is extremely poor, worst than the original Switch 1 launch model.