Vera Rubin NVL72 / Power and cooling
NVIDIA Vera Rubin NVL72 power and cooling
Vera Rubin raises rack power again. That decides which sites can host it, and it's a big part of why this capacity is scarce.
Power per rack
NVIDIA's product page gives no rack power figure. Hashrate Index reports about 190 kW in the efficiency-tuned configuration and about 230 kW at maximum performance (Hashrate Index, Mar 2026). That's well above the roughly 120 kW of a Blackwell NVL72 rack. Confirm the figure for your configuration with the operator.
Liquid cooling
The rack is reported as 100% liquid-cooled with 45°C inlet water (Hashrate Index). Warm-water cooling means many sites can reject heat without chillers for most of the year, which lowers running cost. It also means the hall has to be built for it.
Why the power is worth it
NVIDIA's claim is up to 10x more tokens per megawatt than GB200 NVL72 (NVIDIA). A rack draws more, but a megawatt of Vera Rubin does far more work than a megawatt of Blackwell. For a power-limited site this is the whole argument.
What this means for buyers
- Renting from an operator with a Vera Rubin-ready hall is the realistic route for almost everyone.
- Hosting your own means finding roughly 200 kW liquid-cooled positions. Few exist today.
- Planning ahead matters: the next rack, Kyber, is about 600 kW. See Rubin Ultra.
If you have power and a site and want Vera Rubin capacity placed there, we can help with that too. Mention it in your request.
Questions
How much power does a Vera Rubin NVL72 use?
Can Vera Rubin NVL72 be air-cooled?
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