Power Consumption of Hard Drives 5400 & 7200

Discussion in 'MacBook Pro' started by born4sky, Oct 15, 2009.

  1. born4sky macrumors 6502a


    Mar 14, 2008
    as topic states, what do you think the difference in power consumption between 5400rpm and 7200 rpm?
  2. Mactagonist macrumors 65816

    Feb 5, 2008
    NYC - Manhattan
    not enough of a difference to worry about.

    though a big modern 5400rpm is just as good as a 7200rpm drive in most benchmarks. Something like the WD Blue 500gb drive would be a great choice.
  3. drewsof07 macrumors 68000


    Oct 30, 2006
    Just look at the power consumption listed on the drive specs.

    As far as performance goes, you will notice a significant difference in large file transfers. The time will be moderately faster. Just browsing around finder and safari, mail, etc. you won't notice much difference.

    Here is a good article for these questions.
  4. fibrizo macrumors 6502


    Jan 23, 2009
    Having personally downgraded from a seagate 7200 rpm to a hitachi 5400 I can say that it affected my battery life. I have a thread on batterylife and power consumption somewhere.

    Anyhow to sum up on my 13 mbp i got about 5:30 with my 7200 rpm and closer to 6:15-6:30 on a 5400 rpm for similar use.
  5. JRoDDz macrumors 68000


    Jul 2, 2009
    There are a number of issues to think about in addition to power consumption.

    1) Noise and Vibration (do you want a noisy 7200 rpm drive?)
    2) Increased heat (do you want overall increased system heat? ie: fans operating more often)

    Not to say that the 7200 will cause these issues, but as for me I'd rather have a silent cool slower drive than a noisy hotter faster one.

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