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I see many component manufacturers boast that their products use N% less power than their competitor or older version product, but nobody says how much it matters in comparison to total power consumption. So it isn't clear if a new piece will save a significant portion of a notebook's charge.

What are the approximate consumption percentages for components in notebooks and netbooks?

I am specifically interested in how much power swapping hdd to ssd can save in asus eee pc.

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closed as not a real question by Journeyman Geek, soandos, ChrisF, Diogo, BBlake Oct 26 '12 at 11:53

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2 Answers

If it's measuring power consumption that you're interested in, then I guess you should read this entertaining article written by Jeff Atwood himself. He recommends using Kill-a-Watt to measure power consumption.

If you'd rather not spend any money for the purpose, I'd say Joulemeter is something that might interest you.

If you'd also like to measure core temperatures of your CPU, graphics card and HDD then you can use Everest or AIDA64 to do just that.

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Here is a comparison of some ssds and hdds regarding speed an power consumption.

from wikipedia:

High performance flash-based SSDs generally require half to a third of the power of HDDs. High-performance DRAM SSDs generally require as much power as HDDs, and must be connected to power even when the rest of the system is shut down.

Here is an article where they measured the total power consumtion based on components power consumtion based on components.

How much an ssd will save you depends on how you use your pc because power consumption by component varies greatly depending on the use case (p.6 of article).

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