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    Memory confusion

    Discussion in 'Dell XPS and Studio XPS' started by paolo2, May 29, 2010.

  1. paolo2

    paolo2 Notebook Geek

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    I have a 1640 with 6G of RAM installed, however when I run CPU ID CPU Z, it is reporting my DRAM frequency at 532 instead of 1066 MHZ.
    Any thoughts as to why?
     
    paolo2, May 29, 2010
    #1
  2. JKleiss

    JKleiss Notebook Evangelist

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    DDR(3) (Double data rate) ram runs at 2x(double) the DRAM frequency.
    So double ur 532 and what do you get...?
     
    JKleiss, May 29, 2010
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  3. scorpeeon

    scorpeeon Notebook Evangelist

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    it's normal. 532 MHz is your memory's real frequency, 1066 MHz is the effective frequency. DDR RAMs transfer data twice in a clock signal effectively doubling the performance.
     
    scorpeeon, May 29, 2010
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  4. paolo2

    paolo2 Notebook Geek

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    Thanks guys! :)
     
    paolo2, May 29, 2010
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