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    Memory and CPU fsb in sync?

    Discussion in 'Hardware Components and Aftermarket Upgrades' started by oscamaya, May 8, 2006.

  1. oscamaya

    oscamaya Notebook Guru

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    Are there benefits of running memory and CPU fsb in sync?
    Will the laptop be more stable so?
    Should I avoid NOT running them in sync?

    Cheers
     
    oscamaya, May 8, 2006
    #1
  2. miner

    miner Notebook Nobel Laureate

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    Running in sync with the FSB will allow the cpu to theoretically use all of the available bandwidth. At most you"ll see 2 - 3% performance differential(assuming that you upgraded the memory from a lower speed to match the bus speed). Other than this there is no real disadvantage to running the memory at lower or faster speed.

    There wont be any stability issues. Infact most manufacturers ship laptops with DDR2 533 rather than DDR2 667 memory in most Intel Core Duo systems(which has FSB of 667MHz). So, there wont be any issues.
     
    miner, May 8, 2006
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  3. qwester

    qwester Notebook Virtuoso

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    It's not only matching speeds (MHz), but also memory latency which comes into play in real life applications.

    As miner mentioned, although some manufacturers are going with the slower 533MHz, the loss in performance is not that large (if at all) because slower memory have an advantage over faster memory when it comes to latency.
     
    qwester, May 8, 2006
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