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    PCMARK05/Super Pi results

    Discussion in 'Dell' started by babber, Jun 30, 2007.

  1. babber

    babber Notebook Geek

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    I have a Latitude D630 with the T7500 2.2GHz, 2GB RAM, 80GB 7200RPM HD, Intel X3100, Windows XP Pro (fresh install).

    I turned off the antivirus, automatic updates and system restore, and set my Power Scheme to Always On. I then ran Super Pi Mod 1.5 and PCMARK05 (limited, free version).

    Super Pi to 2 Million took 53.01 seconds and to 1 Million took 21.77 seconds. However, I was only able to achieve a score of 3846 (highest of 5 attempts... lowest was 3778) on PCMARK05. FrostKnight posted a PCMARK05 a score of 4169 with a D630 with the 2.0GHz T7300 and a 5400RPM hard drive. When I compared my system with someone else's, my system showed a FSB of 200MHz.

    I'm wondering why my score was so low and why the FSB showed 200MHz. Can anyone give me some insight?

    Thanks.
     
    babber, Jun 30, 2007
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  2. mrXniick

    mrXniick 8

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    i don't understand the inner working of fsb and such.. but i do know that in processor id programs/benchmark tests.. it splits the fsb in half, which would be 200mhz. Its not 400 because it is dual core.. so multiply the 200 it shows by 2, and 400+400 for the 2 cores and you have your 800mhz fsb.
     
    mrXniick, Jun 30, 2007
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  3. PhoenixFx

    PhoenixFx Notebook Virtuoso

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    No, AFAIK that is not how it is calculated.
    I’m also not 100% sure about this, but this is what I understand: there is a base frequency which is used to calculate operational frequencies of all the busses (CPU, Memory, AGP, PCI etc.). 800MHz is achieved by a technique called quad pumping. Which means that data is transmitted between the CPU and the Northbridge 4 times per single clock cycle: once during the rising edge and once during the falling edge, but with two signals 90 degrees out of phase from one another. This means the actual clock is 200MHz but you get an effective frequency of 200x4=800Mhz (with quad pumping).
     
    PhoenixFx, Jun 30, 2007
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  4. ttan98

    ttan98 Notebook Enthusiast

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    You will notice from most laptop reviews you find that laptop with :D 2.0G core 2 duo gives a score for super pi 2M a score of around 59 sec. your score for 2.2G of 53s is within ball park. If the FSB is actually half your score will not be in this range.
     
    ttan98, Jun 30, 2007
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