| numberwang said: Taking a look at Nivida Orin T234: https://gadgetversus.com/graphics-card/nvidia-tegra-orin-t234-gpu-specs/ Nintendo's T239 is rumored to have: Now the only way to get that working is either a reduction of cuda cores or very low clocks. I think we could get something around 570MHz docked which would be 4000*0,75*0,57 = 1.7 Tflops at 11W guesstimated. In mobile mode we might be looking at 330 MHz so 4000*0,75*0,33 = 1 Tflop at maybe 5W. |
I won't be posting here much because I find the discourse is just not very good, but I will take some time to respond to this well thought out post.
The problem that I think arises is there's really no need for 1536 CUDA cores to get that performance. You could get the same performance from 1024 CUDA cores and just clock them higher (which has no effect on the cost) and the chip would be cheaper and have better yields. Having a massive chip like that for no reason just doesn't make sense, your yields will be worse making production more expensive and you're paying for a more complex chip for no reason.
If it is 1536 CUDA cores, then I think it is on the 4N/5nm process at TSMC or a smaller node from Samsung, because at 8nm Nintendo is just wasting money by making a massive chip that large (this would be getting into the ball park a similar size to the PS5 chip ... in something that is supposed to be the size of a Switch is crazy, yes you can downclock heavily but it makes no sense for the above mentioned reasons). And the Nvidia leak is pretty clear -- Tegra T239 ... 1536 CUDA cores, there is no other chipset in the documentation that would fit. So if they're paying for 1536 CUDA cores, I think they're probably going to want to get proper use of them.
But here is Ratchet & Clank Rift Apart, apparently this is supposed to be the high water of what a PS5-only game can do, best looking game on the system, etc. etc. etc. ... yet here it is running just fine on a 1.6 tflop Steam Deck:
So what is a Steam Deck? Well it's clearly not "just a PS4" or even PS4 Pro, because a PS4 can't run this game at all (or Sony won't bother to try). And the thing with Steam Deck is it could get better performance than even this, because of the nature of the device it's just the PC version of the game, but if you had a dedicated dev team sit down and spend a few months specifically porting this game just for this one spec Steam Deck like console games get, the performance and settings of the game would likely rise a notch beyond even this because of specific optimization. Even if this is "Steam Deck verified" an actual port made just for this hardware would outperform this version. And if you could add DLSS on top of that ... DLSS will make even from 800p resolution a waaaaaay better looking image quality than that. It may not be exactly 4K native, but it will look way, way better than shitty native 800p does, it will look far closer to a 4K game than it does to an 800p game if this chip could do utilize DLSS.
Also Kopite has gotten node sizes wrong on other occasions, here's one example where he stated a the 50 series Nvidia GPUs wouldn't be 3nm and then later admitting he was wrong.
I was wrong. 🥹 https://t.co/uLyZZN4uiV
— kopite7kimi (@kopite7kimi) May 6, 2023
Really with the Tegra T239 he got only the name correct and everything else was wrong, wrong codename, wrong amount of CUDA cores, wrong CPU from his initial post, wrong architecture (Ampere not Ada) based on the actual Nvidia leaked documentation.
Last edited by Soundwave - on 21 September 2023
