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    How much power do Core 2 Duo CPUs consume ?

    Discussion in 'Hardware Components and Aftermarket Upgrades' started by wearetheborg, Feb 27, 2009.

  1. wearetheborg

    wearetheborg Notebook Virtuoso

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    Eg., T9550 ?
    I gather the TDP rating is not the same as power consumed by the CPU.

    Also, of that power consumed, how much power is consumed by the L2 cache ?
     
    wearetheborg, Feb 27, 2009
    #1
  2. notyou

    notyou Notebook Deity

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    notyou, Feb 27, 2009
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  3. Commander Wolf

    Commander Wolf can i haz broadwell?

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    I'm skeptical of the idle figure. I've got a P8400 and my entire machine draws under 10W at idle. Granted that's a P8400, but I don't think the T9550 idle draw is going to be much more. It's in the realm of 40W to 50W at full processor load (without undervolting), so I don't think the load figure is totally inaccurate, though.

    It's hard to tell how much of that power is consumed by the cache: you'll have to find a 3MB L2 C2D and a 6MB L2 C2D, set them in similar systems at the same voltages and clockspeeds and measure the power consumption. Dunno if anyone has tried it yet...
     
    Commander Wolf, Feb 27, 2009
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  4. sgogeta4

    sgogeta4 Notebook Nobel Laureate

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    I doubt the cache would make much difference, but I have yet to see any tests that prove it or otherwise.
     
    sgogeta4, Feb 28, 2009
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