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    How accurate is Super Pi?

    Discussion in 'Lenovo' started by colm, Jun 7, 2007.

  1. colm

    colm Notebook Consultant

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    I was interested in benchmarking the T61 (T7300) results from http://www.notebookreview.com/default.asp?newsID=3708&review=ThinkPad+T61 against some of my work machines (8 x Xeon 2.66MHz and 4Gb RAM).
    I noticed that Super Pi doesn't seem to deal with multiple processors very well. It used Proc 0 & proc 7 mainly,. I would have expected it to spread itself evenly across all 8 processors.

    Anyway - the T61 took 59s to calculate 2 million decimal places. My machine was 48s for 2M decimal places.
     

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    colm, Jun 7, 2007
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  2. Grentz

    Grentz Notebook Evangelist

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    I believe it is only dual core optimized (thus is good for Core Duo, Core 2 Duo, Single Core, etc.) and not meant for more than that (thus the poor performance on a 8 core system).

    It seems pretty accurate for Dual and Single cores though, I always get the same score if I leave my machine set at the same settings. It also is a good comparison of CPU performance (not overall system performance though).

    My Core 2 Duo Desktop (e6600) OCed to 2.8ghz does 2M in 40 seconds everytime.
     
    Grentz, Jun 7, 2007
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  3. moon angel

    moon angel Notebook Virtuoso NBR Reviewer

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    moon angel, Jun 7, 2007
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