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    Interesting issue overclocking 1400...

    Discussion in 'Dell' started by Devedander, Sep 18, 2007.

  1. Devedander

    Devedander Notebook Evangelist

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    So I have a replacement 1400 and my original and I am testing the new one thoroughly to make sure it works well... I noted that the vid card in my original overclocked like a champ reaching 656/820 stable.

    The new one disappointed me as core maxes around 645 but RAM tops at 775. If anyone paid attention to the whole magic ratio thing in the main overclocking thread I found that it did indeed seem to work for me which would mean to maintain it I would have to run 620/775.

    So I decided to bench it a bit with 3dmark 06 to see exactly where I stand... and this is where it got weird. With the original one that overclocked nicely I got:

    1170 stock
    1532 620/775
    1564 656/820

    But with the new one, same drivers I get:

    1300 stock
    1930 775/620
    1961 775/651 - this one was to test a theory that maybe the magic ratio wasn't magic, just having a solid ratio that wasn't some crazy decimal helped, at this setting my ntune control panel failed during benching but I think it still kept running at these speeds.

    The old Vostro even has 2 GB of RAM vs the new one sitting at 1GB not that I think it should make a difference...

    So I am stuck wondering how does one card outperform the other so handily at the same speeds on the same system?