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Comment Re: Energy differential calculation wrong (Score 1) 146

Home computer consumption is only 1/20th that of data centers and server rooms for USA so negligible for worrying about carbon footprint.

Citation please?

According to a study from 2014, total desktop and notebook energy usage in the USA was 30 terawatt-hours per year.

Source: https://www.osti.gov/servlets/...

According to this study, the total data center energy consumption in the USA was 70 terawatt-hours per year.

Source: https://www.osti.gov/servlets/...

Comment Energy differential calculation wrong (Score 2) 146

They calculated the difference in energy consumption but failed to factor in the orders-of-magnitude difference of NAND performance via HDDs. To wit, an HDD will spend much more if its time at peak power consumption during I/O vs SSDs, by function of how much longer it takes complete the I/O. And that doesn't even factor in the additional power consumption from keeping the system running longer to complete I/O-bound workloads for a given user task.

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