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kingstnaptoday at 1:15 AM2 repliesview on HN

A DGX B200 costs like ~$0.5 M and uses around 14 kW.

If you plan to run it straight for 8 years 100% max usage thats around 1 GWhr.

A gigawatt hour is a lot of energy but its not that much compared to the price of the actual machine. In Germany for example with its expensive energy thats about €100k worth, which spread over 8 years is pretty minor compared to the up front half mill.

The real issue with high power consumption is not really the cost of energy but the limited powersupply you can get for a datacenter. A more efficient setup is highly desirable because it means you can fit more in the limited power hookup.


Replies

jwpapitoday at 8:40 AM

Interesting so it’s supply chain and then you need to calculate how long it can be utilized and for how much you can sell it.

Would love more calculations on that

dannywtoday at 4:23 AM

It’s more than power supply. Cooling and ventilation becomes a MUCH bigger deal at rack scale, and that costs electricity too.

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