Hard drive size and RPM inverse relationship

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

  1. lamina macrumors 68000


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

    mad jew

    Apr 3, 2004
    Adelaide, Australia
    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

    Feb 28, 2006
    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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