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sc94597 on 23 September 2023
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Soundwave said:
sc94597 said:

If it is a T239, I am almost certain it is going to be something other than 8nm. 

For the very good reasons presented by those with the computer engineering knowledge. 

It comes down to this: why would Nintendo and Nvidia go with 12SM if 6SM or 4SM would be cheaper and provide better performance? 

But we know the T239 is 12SM from the leak. 

So either the Switch 2 will consume a lot more power than we think, or they are using a different node. 

I'd give it an 80% chance it is the latter and a 20% chance it is the prior.

The fact that you are 99% certain about something you have very little domain knowledge of should give you pause. 

Doesn't the scaled down Orin NX 16GB (only 1024 CUDA cores) still consume 10w-25w? I assume 10 watts is the chip downclocked significantly?

Keep in mind the Tegra T239 is showing 1536 CUDA cores, so that's a 50% increase in graphics cores ... unless those extra CUDA cores are running on Pikmin farts, they must be consuming some energy too even if you down clock. 

I mean I wouldn't even mind, but is this even possible at 8nm in something smaller than a ROG Ally or Steam Deck? 

My thought, for that 20% likely prediction, was that Nintendo allows the system to run at 30W docked (which could make 12SM reasonable if they prioritize docked performance over handheld.) But of course it's Nintendo, they are obsessed about power-savings, so that is very much unlikely. 

30W should be possible with external cooling. Albeit the cooling would be expensive.

Last edited by sc94597 - on 23 September 2023