Selfhosted
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For power consumption, NVMe drives use quite a lot of power, especially PCIe 4.0 ones. About 5W each during use.
3.5" HDD (especially 7200rpm or more) also consume significantly more than 2.5" 5400rpm HDDs that are optimized for low power (the latter use about 1W during use).
SATA SSDs fall somewhere in the middle.
How does that work out in terms of energy consumption though?
If NVMe is at least 10x faster, but consumes 5x more power, it will use less energy to read or write the same amount of data overall.
To answer that question one would need to dive deeply into idle vs. in active use power consumption. It's not like a NAS gets turned off when not in use.
My server use about the same power no matter if its idle or under full load, so I dont think drive speed makes any difference. My SSDs use much less than my HDD anyway