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haxxiy said:

So Blackwell is still manufactured in the N4 node, which is kind of surprising, but it kind of makes sense feature size-wise since the N4 node used in the Ada GPUs and the high-density N3 node have more or less the same MT/mm² count.

As for the power consumption of ~ 40,000 Cuda cores running at similar frequencies as the last gen (which could reach a 700W TDP in SXM), that is anyone's guess.

One of Dell's higher ups spilled the beans a couple weeks ago talking about 1000W chips and how they'd be able to cool them without using watercooling:

https://www.tomshardware.com/tech-industry/artificial-intelligence/nvidias-b100-and-b200-processors-could-draw-an-astounding-1000-watts-per-gpu-dell-spills-the-beans-in-earnings-call