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    T6400 vs T6500 vs T6570

    Discussion in 'Hardware Components and Aftermarket Upgrades' started by franzerich, Jul 30, 2009.

  1. franzerich

    franzerich Notebook Evangelist

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    What is the difference between them? It is not really clear, because if you look passmark values u get following:

    T6400 @2.0 Ghz => 1320 points
    T6500 @2.1 Ghz => 1576 points
    T6570 @2.1 Ghz => 1343 points

    Why is the T6570 so much slower than the T6500? The T6500 seems as fast as the P8600, but the T6570 is hardly better than the T6400?! This looks wrong and not logical to me. How can it be?
     
    franzerich, Jul 30, 2009
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  2. Soviet Sunrise

    Soviet Sunrise Notebook Prophet

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    It is the deviation in user submissions as not all of them were running PassMark under the same system conditions. Also, there are not enough submissions for the T6500 and T6570 to be statistically sound. Maybe if there were around 100 samples, then will we see the true numbers for those CPU's.
     
    Soviet Sunrise, Jul 30, 2009
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  3. franzerich

    franzerich Notebook Evangelist

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    ya, i thought this too, but it is really strange:

    Another example:
    P8800 @2.6 ghz => 1306 points
    P8700 @2.5 ghz => 1863 points

    This difference is very high. Since it is a CPU Benchmark I think it mostly reviews the CPU power... and differences like that are enormous :eek:
     
    franzerich, Jul 30, 2009
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  4. Soviet Sunrise

    Soviet Sunrise Notebook Prophet

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    Soviet Sunrise, Jul 30, 2009
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  5. franzerich

    franzerich Notebook Evangelist

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    Hmmm true... that's weird. As if they do this Test with energy saving profile :eek:
     
    franzerich, Jul 30, 2009
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  6. Soviet Sunrise

    Soviet Sunrise Notebook Prophet

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    That is my conclusion as well. The goal of a CPU benchmark is to gauge the highest performance level of the CPU. In this case, most of the scores for the mobile CPU's on PassMark most likely had throttling enabled.
     
    Soviet Sunrise, Jul 30, 2009
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  7. franzerich

    franzerich Notebook Evangelist

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    Wow, now that u pointed it out, I looked other CPU as well... and it seems quite a lot of them are throttled. How bad is that... lol. Now this makes it difficult to take these values a reference for CPU power...
    :mask:

    Also the T6400: there are 216 samples, but average Speed is 1.595 Mhz, instead of 2.000...oh my.
     
    franzerich, Jul 30, 2009
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  8. John Ratsey

    John Ratsey Moderately inquisitive Super Moderator

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    Try using SiSoftware Sandra.

    It has several different CPU benchmark tests and the latest version has an online database.

    John
     
    John Ratsey, Jul 30, 2009
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  9. naton

    naton Notebook Virtuoso

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    SiSoftware Sandra benchmarks are so and so. They list the Pentium Dual Core T2370 as been fater than a Core Duo T2500 which has a fater speed, a faster FSB, and Double the cache.
     
    naton, Jul 31, 2009
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  10. franzerich

    franzerich Notebook Evangelist

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    mhm, I tried Sisoft, but there are much less CPUs for comparison :(
     
    franzerich, Jul 31, 2009
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  11. Phil

    Phil Retired

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    ^ This is very good stuff.

    Don't rely too much on the Passmark benchmark. Among the different variables can be faster memory, background processes, energy saving settings, even different version of the Passmark benchmarks, different OS.
     
    Phil, Jul 31, 2009
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  12. allfiredup

    allfiredup Notebook Virtuoso

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    The T6500 and T6570 are identical in all performance-related specs- 2.1GHz, 800MHz FSB, 2mb L2 cache, 45nm Penryn architecture. The only difference is that the T6570 supports Intel Virtualization functionality...nothing that that would cause any variance in performance from a user perspective.
     
    allfiredup, Jul 31, 2009
    #12