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    Intel core i7-820QM 1,73 or 3,06 ghz?

    Discussion in 'Hardware Components and Aftermarket Upgrades' started by Extremal, Sep 25, 2009.

  1. Extremal

    Extremal Notebook Guru

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    What does it mean:

    Intel® Core™ i7-820QM processor, 1.73-3.06GHz

    What is the actual frequency???
     
    Extremal, Sep 25, 2009
    #1
  2. Lanaya

    Lanaya Templar Assassin

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    Lanaya, Sep 25, 2009
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  3. Trottel

    Trottel Notebook Virtuoso

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    It is the low end of that range, but it may clock a single core to 3.06Ghz if there is only a single thread consuming lots of CPU cycles.
     
    Trottel, Sep 25, 2009
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  4. Extremal

    Extremal Notebook Guru

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    So, as far as i understand - i7-820QM processor, 1.73-3.06GHz is not better than c2q t9900 3.06ghz ?
     
    Extremal, Sep 25, 2009
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  5. JCMS

    JCMS Notebook Prophet

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    It's not the same core so you cannot compare frequency VS frequency, although it should be similar. Also, T9900 is very high end and cost more than the 820QM AFAIK.
     
    JCMS, Sep 25, 2009
    #5
  6. Althernai

    Althernai Notebook Virtuoso

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    There is no such thing as a C2Q T9900 -- the T9900 is a C2D. As a result, the i7-820M is indeed better because the underlying architecture is better clock-for-clock and it will overclock itself fairly close to the speeds of the T9900. Only the QX9300 (and maybe the quad right below it) can match the mobile Nehalems and even then only in fully multi-threaded scenarios.
     
    Althernai, Sep 25, 2009
    #6
  7. PlasmaBomb

    PlasmaBomb Notebook Consultant

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    Does the 820QM hit 3.06GHz with 2 threads or only 1?
     
    PlasmaBomb, Oct 8, 2009
    #7
  8. sgogeta4

    sgogeta4 Notebook Nobel Laureate

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    sgogeta4, Oct 8, 2009
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  9. TexasEx7

    TexasEx7 Meat Popsicle

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    In other words... when you are doing normal tasks, usually that thing will be overclocking to 3.06 GHz... when you are doing CPU intensive tasks that are using up all your cores, it will underclock itself. It is still running twice as many cores as a dual core (up to 4 times as many threads), so the clockspeed is negligible at those times really.
     
    TexasEx7, Oct 8, 2009
    #9
  10. Serg

    Serg Nowhere - Everywhere

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    Hi there!

    Follow the link in my signature about Intel CPUs, that might help you.
    The Intel Processor Information Guide.
     
    Serg, Oct 8, 2009
    #10