Power ConsumptionTo test power consumption, we monitor the overall power of the system through a plug-in electricity usage monitor at an idle and load state. This allows us to show the fluctuation between how much power draw the graphics card takes at idle and at load. By monitoring the overall usage of the whole system, it gives an easy comparison if you wish to do the same yourself as opposed to buying very expensive individual testing equipment.
The 6450 runs relatively low, though the 6570 gave slightly better idle outputs. At load, the 6450 comes out on top with a very low 155 watts used under the most extreme conditions and stress testing.
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