Does more ram use more battery power?

Discussion in 'Mac Basics and Help' started by GoCubsGo, Aug 4, 2006.

  1. GoCubsGo macrumors Nehalem

    GoCubsGo

    Joined:
    Feb 19, 2005
    #1
    I added another 512 today and it seems like I am not getting as much time on my Powerbook without having to recharge.

    I was just curious. It could be me.
     
  2. jsw Moderator emeritus

    jsw

    Joined:
    Mar 16, 2004
    Location:
    Andover, MA
    #2
    It usually uses less, because you do less disk swapping. I can't think of a real-world case where it would use enough more to be noticeable.
     
  3. Miguel0019 macrumors member

    Joined:
    Jul 22, 2006
    Location:
    127.0.0.1
    #3

    You're right.:eek:
     
  4. Super Macho Man macrumors 6502a

    Super Macho Man

    Joined:
    Jul 24, 2006
    Location:
    Hollywood, CA
    #4
    Unless you weren't swapping that much to begin with... RAM uses power just like anything else does. I wouldn't be surprised if adding an extra stick drained 5 extra minutes of battery. That's just a wild approximation though.
     
  5. motulist macrumors 68040

    motulist

    Joined:
    Dec 2, 2003
    #5
    Writing the same amount of data to disk takes a lot more juice than writing it to solid state memory. So in the real world adding ram will reduce overall battery consumption in all except the most unusual of circumstances.
     
  6. Super Macho Man macrumors 6502a

    Super Macho Man

    Joined:
    Jul 24, 2006
    Location:
    Hollywood, CA
    #6
    The RAM is using constant juice whether it's being accessed or not. If neither the RAM nor the HD are being accessed (HD spun down) then the RAM is probably using more energy than the HD. If you are using nothing but Safari and TextEdit on your Mac and you have 512MB and never swap, then an extra 512MB of memory might reduce overall battery life by a bit. It's probably not enough to even worry about discussing though.
     

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