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    Re: RAM and 533 vs 667ghz

    Discussion in 'Dell' started by jmgilliam, May 10, 2007.

  1. jmgilliam

    jmgilliam Notebook Consultant

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    i remember reading somewhere on the site that the 533 was actually better or faster than the 667ghz in regards to RAM... Latency????

    I can't remember and searched and can't find it -

    Thanks for any help
     
    jmgilliam, May 10, 2007
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  2. vespoli

    vespoli 402 NBR Reviewer

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    533Mhz memory usually has a CAS latency of 4 while 667 MHz memory has a CAS latency of 5. Even though 667 is faster clockspeed-wise, it's higher latency cancels out the benefit. Latency is basically how long it takes the memory to "recycle" in between uses. 533 is slower but has a lower latency. I would probably get 667 Mhz memory if the price was the same/only a little bit higher to match the 667 front side bus speed if I had a CPU with a 667FSB.

    In either case, the difference will not be noticeable and will only exist in synthetic benchmarks.

    Summary: Get whatever is cheaper.
     
    vespoli, May 10, 2007
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