What is gpu´s power comsumption based on?

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Jackie Coogan

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May 14, 2013
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I was wondering what determines the aumont of watts a gpu pulls: the over all load or the aumont and quality of graphics it´s rendering.... just out of curiosity...
 
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Onus
The actual used will always be less, sometimes substantially, BUT since vendors do adhere to standards on connectors, the MAXIMUM a card will use will always be no more than:
up to 75W for the PCIe slot, plus up to 75W for each 6-pin PCIe power connector (if any), plus up to 150W for each 8-pin PCIe connector (if any).
For example, the HD7770 has a single 6-pin PCIe power connector, so it will use no more than 150W (it actually maxes out around 80W, just barely enough to need that single 6-pin connector, but if you sized your PSU for the max, you'd be safe).
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Onus

Titan
Jan 27, 2006
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The actual used will always be less, sometimes substantially, BUT since vendors do adhere to standards on connectors, the MAXIMUM a card will use will always be no more than:
up to 75W for the PCIe slot, plus up to 75W for each 6-pin PCIe power connector (if any), plus up to 150W for each 8-pin PCIe connector (if any).
For example, the HD7770 has a single 6-pin PCIe power connector, so it will use no more than 150W (it actually maxes out around 80W, just barely enough to need that single 6-pin connector, but if you sized your PSU for the max, you'd be safe).
 
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