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On Mon, Jul 30, 2012 at 12:36 PM, James <wireless@×××××××××××.com> wrote: |
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>> > When you have full load, the CPU won't clock down. So nothing saved there. |
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>> When you're considering full load, the TDP becomes a useful estimation |
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>> of relative power consumption between different processors. |
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>> > If you don't have full load, the clock-down doesn't save much compared to |
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>> > max clocks while idle. |
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>> This is where you're wrong. |
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> OK. both sides are well stated. |
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> Amp meters are less than $50 USD. They clamp around the |
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> power cord, or any wires inside the computer you can fit |
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> the "clamp" around. |
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> |
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> So make your choice, based on actual measurements? |
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> That's how an EE would make a decision on how |
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> a given processor or software setup actually effects |
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> the power consumption. REAL DATA. |
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> |
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> Note, some of the fancier meter's have an integrator function |
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> where measurements are taken frequently over a time period |
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> to get an even more realistic picture of power consumption... |
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> |
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> http://www.allaboutcircuits.com/vol_6/chpt_2/4.html |
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I've got a Kill-o-Watt which I use for these kinds of purposes. |
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The problem with obtaining first-hand data for a purchasing decision |
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is getting the parts to perform the tests on. |
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-- |
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:wq |
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