Wait...can I upgrade to 4GB?

Discussion in 'MacBook' started by u6crash, Mar 28, 2010.

  1. u6crash macrumors member

    u6crash

    Joined:
    Jan 29, 2007
    Location:
    DeKalb, IL
    #1
    I bought my 13" White Macbook in February of 2007. I am almost certain that I maxed out the ram at 2GB when I ordered it. However, in looking up some specs on Wikipedia, I found that my machine, which seems to be designated with the model identifier "MacBook 2,1" in the system profiler, can be upgraded to 4GB with a 3GB barrier. If this is true, I may have some upgrading to do!

    Is there another number/spec I should check out in the System Profiler to see if I'm eligible for another GB of memory?
     
  2. Hellhammer Moderator

    Hellhammer

    Staff Member

    Joined:
    Dec 10, 2008
    Location:
    Finland
    #2
    From OWC

    So it seems your MB can support 4GB. OWC always test the maximum limits so they shouldn't be talking crap. I would still call them and ask and buy from them at the same time
     
  3. yetanotherdave macrumors 68000

    yetanotherdave

    Joined:
    Apr 27, 2007
    Location:
    Bristol, England
    #3
    Your laptop will only use 3 of that 4 gig.
    If you only put 3 gig of ram in you wont have a matched pair, so will loose dual channel, which makes a significant difference.
    Basically you need to put a full 4 gig in to get the benefit of 1 extra gig.
     
  4. Hellhammer Moderator

    Hellhammer

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    #4
    Less than 5% actually, ~15% if your GPU uses system's memory (RAM), so almost no difference.
     
  5. yetanotherdave macrumors 68000

    yetanotherdave

    Joined:
    Apr 27, 2007
    Location:
    Bristol, England
    #5
    That macbook has a GMA950, so it does use system RAM for the GPU. I'd say 15% is significant. The 950's performance is poor enough as it is, without chucking 15% away.
     
  6. Hellhammer Moderator

    Hellhammer

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    #6
    I admit it's poor but for average user it's fine. You won't see that 15% in other than games really and GMA950 is bad for games no matter what hexa-channelling you have. I think the boost for actual RAM performance is only 5% with GMA 950 but the GMA950 will get a boost of ~10%.

    4GB is still worth it because it can actually utilize ~3.3GB of it.
     
  7. u6crash thread starter macrumors member

    u6crash

    Joined:
    Jan 29, 2007
    Location:
    DeKalb, IL
    #7
    Thanks for all the help! I'm still uncertain if I'll upgrade as I plan to get a new MBP as soon as the refresh comes along. But when that happens I'll be passing this along to my parents.
     
  8. Hellhammer Moderator

    Hellhammer

    Staff Member

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    #8
    I'm sure your parents are fine with 2GB of RAM
     
  9. flopticalcube macrumors G4

    flopticalcube

    Joined:
    Sep 7, 2006
    Location:
    In the velcro closure of America's Hat
    #9
    Since the MacBook runs asymmetric dual-channel, you won't notice a massive difference between 3GB and 4GB. I didn't in my MacBook.
     

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