RAM component configuration

Discussion in 'Mac Accessories' started by redsteven, Aug 2, 2011.

  1. redsteven macrumors 6502a

    redsteven

    Joined:
    Aug 22, 2006
    #1
    I'm looking to upgrade my 8,2 Macbook Pro (early 2011 15" quad i7) to 8 gigs of ram. I'll probably go with one of these (unless somebody else has a better suggestion):
    http://www.crucial.com/store/mpartspecs.aspx?mtbpoid=82E796F8A5CA7304
    http://eshop.macsales.com/item/Other World Computing/1333DDR3S08S/

    The only major difference I see is the component configuration.
    Crucial is using a 512x64 configuration. I asked them about how those numbers worked out, and they told me to divide by 8 (so I guess it's 512 megabits instead of 512megabytes.) Anyway, that comes out to 64 MB * 64

    OWC looks like they're using 256MB*16 (although I have to check with them on that because it also says "Comp. Config: 128Meg x 8" on that same page, which doesn't make any sense.

    ANYWAY, does the component configuration have any effect on RAM performance?
     
  2. ginsek macrumors newbie

    Joined:
    Oct 16, 2006
    #2
    I wonder if you were able to figure out anything on that since I have exact the same question and so far I didn't find any explanation that would make me help with the decision. I just notice that OWC has now slightly different info on their site - Comp. Config: 256Meg x 8, not the 256Meg x 16 or 128Meg x 8.
     
  3. redsteven thread starter macrumors 6502a

    redsteven

    Joined:
    Aug 22, 2006
    #3
    OWC corrected their site after I alerted them to the math error.

    As far as the performance of different RAM configurations, this is what they said:
    When I pressed and asked "In THEORY then, which would be faster? :)" he said:

    I ended up purchasing from Crucial because of how much cheaper it was (~12 dollars or so). OWC offers trade-ins for your old RAM, but I was able to get just as much (technically, a couple of dollars more) by selling it in marketplace forum on this website, though if you don't want to have to deal with selling it, the trade-in you get from OWC might cancel out most of the difference in price.

    And if it means anything, the Crucial RAM was actually the same EXACT brand/type that Apple had installed (Samsung's "Green" line)... though the country of manufacture was slightly different.
    Though I'm sure OWC's would work fine too.
     

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