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A comment on TSMC 5-Nanometer Update. Parent comment

Re:TSMC 5-Nanometer Update by jzwinck on Saturday November 02, 2019 @08:57PM (#21431278)
CPU purchase cost matters too. The electricity cost of one 100W CPU might be around 500 USD per year in a datacenter. Assuming 5 years useful lifetime that's 2500 USD per CPU. But cheaper CPUs can easily cost 1000 USD less, so even if they're 20% less efficient they may still come out ahead.
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Re:TSMC 5-Nanometer Update by londons_explore on Sunday November 03, 2019 @03:44AM (#21432821)
A 100 watt CPU in any modern data center would be at an incremental cost of well under $40.

Data centers get cheap bulk power, cooling is mostly passive now (evaporative) and backup power systems are also a lot cheaper now compared to the compute cost than in the past.

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Re:TSMC 5-Nanometer Update by akvadrako on Sunday November 03, 2019 @05:01AM (#21433042)
It’s especially important for CPUs at home and which are rarely stressed.
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