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    RAM question CL7 VS CL9?

    Discussion in 'Lenovo' started by jw8725, May 12, 2011.

  1. jw8725

    jw8725 Notebook Geek

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    Hello there I have a choice of 2 X 4 gig RAM modules as:

    7-7-7-20 with CAS latency 7

    and

    9-9-9-24 with CAS Latency 9

    I wish to insert them into a Lenovo X120e. I'd like to know which is faster and why? Thanks so much for the help!
     
    jw8725, May 12, 2011
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  2. kirayamato26

    kirayamato26 Notebook Deity

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    The simple answer is that the lower the latency, the better, given the same frequency,
     
    kirayamato26, May 12, 2011
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  3. John Ratsey

    John Ratsey Moderately inquisitive Super Moderator

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    And, more than likely, those two examples given above are for different frequencies. [I would guess that the first is 1066MHz and the second is 1333MHz.]

    John
     
    John Ratsey, May 12, 2011
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  4. jw8725

    jw8725 Notebook Geek

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    jw8725, May 12, 2011
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  5. kirayamato26

    kirayamato26 Notebook Deity

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    That's what my thoughts were.

    It depends on your current RAM and memory controller. If Zacate can only go up to 1066, then by all means, go for the 1066. Though, if your current RAM doesn't have 7-7-7-20 timings, the new RAM will slow itself down.
     
    kirayamato26, May 12, 2011
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