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I've heard that apart from straight-up speed, SSDs greatly outperform HDDs in power consumption and heat generation. How much greater, on average, is an SSD than an HDD in:
Is there a very significant difference?
Naftuli Kay
Posted 2012-03-27T00:32:13.820
Reputation: 8 389
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There is a considerable difference in power consumption, I've seen different data on that, but its ~0.6W as opposed to ~2.2W.
One thing to keep in mind- because there is no queuing delay, the processor utilization will go up, and that will create a lot more heat. A buddy of mine says that there are times where his laptop actually gets hotter after doing that upgrade for that reason. I'm sure that only happens when he's really reading/writing a ton of data!
psyklopz
Posted 2012-03-27T00:32:13.820
Reputation: 148
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Intel 520 SSD power consumption: Read/Write: 0.8w Idle: 0.6w
WD Scorpio power consumption: Read/Write: 1.4w Idle: 0.6w
There is not so much difference in the heat generation. They both produce heat in a same level.
crea7or
Posted 2012-03-27T00:32:13.820
Reputation: 939
the processor utilization will go up in some cases (like upgrades) but for a shorter time. Because the amount of total CPU work shouldn't change. So higher peaks but less long. The actual result it depends on the function between the "density" (mix of phases of IO & CPU) of our example test load and the consumption of the CPU. Which depends on the power saving policy of the CPU and the OS – tuxayo – 2018-10-08T18:41:21.437