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linuxftwtoday at 4:14 PM1 replyview on HN

Depends on the workload. H100 will never have the network performance of Vera Rubin. There's also token per watt, newer systems will beat the older systems.


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kurthrtoday at 4:25 PM

It's not clear how much of the latest chips have even made it on-line yet.

The claims of many GW of installed training/inference have come under scrutiny lately. The first VeraRubins aren't even there yet, so it's all GB300 NVL72s as the peak performers and probably <<1GW of those so far. Even xAI Colossus is mostly H200s and B200s.

Electricity costs are also a huge differentiator. When drawing 100kW the difference between >50cents and <10cents per kWh is pretty big! One is almost $0.5M and the other is less than $100k.