this post was submitted on 20 Dec 2023
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Modern systems do a lot more work per second than these old machines, while drawing less power. If you were to collect a large enough collection of mainframes to equal the performance of a modern rack server, you would need 10-1000 times the power to run the old stuff, depending on how far back you want to go - even 10 year old hardware can cost 4-10 times more in electric bill compared to a modern server with the same total performance level.