2GBx4 or 4GB x 2 RAM?

Discussion in 'iMac' started by seasurfer, Aug 5, 2010.

  1. seasurfer macrumors 6502a

    Joined:
    Dec 12, 2007
    #1
    2GBx4 or 4GB x 2 RAM? Which one is better?

    Buying full 16GB RAM now on the new iMac is just insanely expensive, I would like to upgrade to 16GB when the RAM price drop.

    My question is, if I buy the 4GB x 2 RAM, and later on buy another 4GB x 2 RAM of a different brand, will that slow down the speed or cause crashes? Please let me know.
     
  2. Thermonuclear macrumors 6502

    Joined:
    May 23, 2009
    #2
    You want to get 2 x 4GB. Later, get another 2 x 4 GB. Pairs should come from the same manufacturer.
     
  3. CaoCao macrumors 6502a

    Joined:
    Jul 27, 2010
    #3
    get 2x4GB from OWC so you will have the second set match as well
     
  4. jotade11 macrumors regular

    Joined:
    Feb 2, 2009
    #4
    Well, it's not crucial (no pun intended-- http://www.crucial.com/) to have the same manufacturer, correct? Can anyone back me up on this? It might yield some small margin, but a 2 x 4 GB will run faster than a 4 x 2GB and leave you with an extra 2 memory slots.

    I'm no expert and this is just my understanding, so please... correct me if I'm wrong. :)
     
  5. alust2013 macrumors 601

    alust2013

    Joined:
    Feb 6, 2010
    Location:
    On the fence
    #5
    As far as mixing brands goes, it really doesn't matter. They all do the same thing, so I'd get the 4GB x 2 option.
     
  6. alust2013 macrumors 601

    alust2013

    Joined:
    Feb 6, 2010
    Location:
    On the fence
    #6
    Well, you are close, the 4 x 2GB will actually be faster, but not by a very significant amount. But that would not be a smart buy, as you would have to replace 4 dimms rather than just add two.
     
  7. jotade11 macrumors regular

    Joined:
    Feb 2, 2009
    #7

    Oh ok.... just out of curiosity, do you know what makes the 4 x 2GB faster? I would have thought keeping everything more localized in the 2 sticks to be faster.
     
  8. Thermonuclear macrumors 6502

    Joined:
    May 23, 2009
    #8
  9. alust2013 macrumors 601

    alust2013

    Joined:
    Feb 6, 2010
    Location:
    On the fence
    #9
    It's because the computer can access more things simultaneously with 4 sticks rather than two.
     
  10. jotade11 macrumors regular

    Joined:
    Feb 2, 2009
  11. Felias macrumors member

    Joined:
    Jul 29, 2010
    Location:
    Germany
    #11
    Why not go with the 2x2GB installed and add one 4GB Ram? Then you can add another 4GB later on. 12GB should definetly be sufficient for the next years imho.
     
  12. maril1111 macrumors 68000

    maril1111

    Joined:
    Mar 14, 2010
    Location:
    Denmark
    #12
    Probably the Best Idea from all use this one it's also cheaper then buying 4 x2 which costs on average 294$ whereas 2x4 costs 283$
     
  13. Macfr3d macrumors newbie

    Joined:
    Jul 30, 2010
    #13
    Thats what I would do as well. Not only is it the least expensive option also
    makes the most sense if you dont't need 16GB right now but want to have
    more than 8GB.
     

Share This Page