Hard drive size and RPM inverse relationship

Discussion in 'Mac Basics and Help' started by lamina, Mar 11, 2007.

  1. lamina macrumors 68000

    lamina

    Joined:
    Mar 9, 2006
    Location:
    From Canada, living in Seoul
    #1
    Why is it that the bigger your laptop drive gets, the lower its RPM becomes?
     
  2. mad jew Moderator emeritus

    mad jew

    Joined:
    Apr 3, 2004
    Location:
    Adelaide, Australia
    #2
    At a guess, heat dissipation? The higher density platters + fast speeds create more heat than the manufacturer is willing to allow for.
     
  3. tilman macrumors regular

    Joined:
    Feb 28, 2006
    #3
    Some of the higher capacity laptop drives use perpendicular recording technology, which effectively packs the bits closer together along the tracks. That means a higher data rate at the same RPM. Or the same or even better data rates even at lower RPMs.
     

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