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    DDR in pairs?

    Discussion in 'Hardware Components and Aftermarket Upgrades' started by joeyrb, Feb 3, 2008.

  1. joeyrb

    joeyrb Notebook Evangelist

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    Hello,
    I have seen DDR in 3gb form in some laptops....a 2gb stick and a 1gb stick.
    I thought the DDR memory had to be paired in the same increments..1gb with 1gb, 2gb with 2gb.....
    Then I read it doesnt make that much of a difference, unless it's a Turion 64x2. I thought I read that Turion makes better use, or benefits from the DDR being in exact pairs.
    Anyone keen on this?

    thanks
    joe
     
    joeyrb, Feb 3, 2008
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  2. nizzy1115

    nizzy1115 Notebook Prophet

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    DDR does not have to be paired. But when it is it is called "dual channel". You can see a small performance boost by using ram in dual channel. But, you don't have to.
     
    nizzy1115, Feb 3, 2008
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  3. STEvil

    STEvil Notebook Consultant

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    You do not need to match amounts to have dual channel. The number of chips on the ram will have a slight impact on dual channel performance if they are uneven but generally most chipsets have nearly identical performance between syncronous and asyncronous modes.
     
    STEvil, Feb 3, 2008
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  4. joeyrb

    joeyrb Notebook Evangelist

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    ok, cool enough....thanks....not so "afraid" about going 3gb now.
     
    joeyrb, Feb 3, 2008
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