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    DMI 4.8GT/s Vs DMI 2.5GT/s (knowledgable people click here)

    Discussion in 'Hardware Components and Aftermarket Upgrades' started by laststop311, Jun 27, 2010.

  1. laststop311

    laststop311 Notebook Deity

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    Simple question. Say you have 1066Mhz DDR3 Ram in a 2x dual channel config, Will a 4.8GT/s DMI increase the speed of data flow or is the 2.5GT/s DMI already fast enough to not allow the ram to saturate the bus completely. If the ram doesn't saturate 2.5 all the way then 4.8 is pointless.
     
    laststop311, Jun 27, 2010
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  2. sgogeta4

    sgogeta4 Notebook Nobel Laureate

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    Synthetically, you see a difference but I doubt there would be any real life performance boost - if that's what you're referring to. Which CPU are you referring to that users 2.5GT/s I/O Bus (DMI)?
     
    sgogeta4, Jun 27, 2010
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  3. laststop311

    laststop311 Notebook Deity

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    i5-450 2.4ghz 2.66ghz turbo 4.8gt/s dmi
    vs
    i5-520 2.4ghz 2.93ghz turbo 2.5gt/s dmi

    what gives the higher performance boost +270mhz turbo boost or +2.3gt/s dmi?

    also the i5-520 is 100 dollars more
     
    laststop311, Jun 27, 2010
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  4. laststop311

    laststop311 Notebook Deity

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    how can i expect the load times to be effected with +2.3gt/s but 270mhz less turbo?

    how can I expect the load times to be effected with +270mhz turbo but 2.3gt/s less?
     
    laststop311, Jun 27, 2010
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  5. sgogeta4

    sgogeta4 Notebook Nobel Laureate

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    While I don't have hard numbers, $100 for an upgrade isn't worth it. The difference btw the two CPUs is marginal at best.
     
    sgogeta4, Jun 27, 2010
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  6. one33_bpm

    one33_bpm Notebook Consultant

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    Simply put, you will not know anything for sure until some memory benchmarks are taken to compare the two.
     
    one33_bpm, Jun 28, 2010
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