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How does the number of sticks of RAM influence speed, for the same total amount of RAM?

Let's say I want to have a computer with 4GB memory. I could use one 4GB memory chip, or two 2GB memory chips. Would using two 2GB memory chips be slightly faster?

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marked as duplicate by random Mar 26 '11 at 0:54

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Yes, all else being equal 2x2Gb will be faster if the two are paired properly and your chipset supports dual-channel memory.

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Why is it faster? How much faster is it? –  tony_sid Mar 26 '11 at 1:07

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