RAM Upgrade question.

Discussion in 'iMac' started by h4lp m3, Aug 17, 2011.

  1. h4lp m3 macrumors 6502

    Joined:
    Jun 29, 2011
    Location:
    New Orleans
    #1
    I have a Late 2010 27" iMac with 12GB (2x4GB) and (2x2GB) of PC3-10600.
    I stumbled upon 2x4GB of PC3-8500 and was thinking about swapping them for the 2x2GB.
    A user on this forum said you could mix the RAM but the PC3-10600 would operate at 1066MHz. My question is should I install the RAM? Would it be slower or faster?
     
  2. Hellhammer Moderator

    Hellhammer

    Staff Member

    Joined:
    Dec 10, 2008
    Location:
    Finland
    #2
    Like I said in the thread you linked, you can do this. However, all modules will be downclocked to 1066MHz. In real world apps, the performance difference will be negligible because the RAM bandwidth is not the bottleneck, hence go with the RAM if you need more than 12GB.
     
  3. panzer06 macrumors 68030

    panzer06

    Joined:
    Sep 23, 2006
    Location:
    Kilrath
    #3
    I guess he didn't believe you back in July. So here you go.

    Hellhammer is right. For all practical purposes it will make very little difference.

    Cheers,
     
  4. The-Pro macrumors 65816

    Joined:
    Dec 2, 2010
    Location:
    Germany
    #4
    Prices of 1066 and 1333 Mhz RAM is pretty much identical. You might aswell get 1333 and use the RAM you have to its full potential. But like Hellhammer said, you wont notice a difference.
     

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