Take the 2-minute tour ×
Super User is a question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.

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:

  1. Power consumption.
  2. Heat generation.

Is there a very significant difference?

share|improve this question

2 Answers 2

up vote 2 down vote accepted

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!

share|improve this answer

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.

share|improve this answer

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.