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Power Consumption

System Builder Marathon: $625 Gaming PC
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For SBM performance testing, power saving features such as CPU Enhanced Halt and CPU EIST Function were both disabled, and Windows Vista’s power option was set to High Performance. Let’s take a look at the total system power usage measured from the AC source.

We just started measuring power consumption last month and a communication snafu prevented a couple of these consumption measurements from being available for comparison. We can see that this month’s stock-clocked system consumes quite a bit more power than last month’s system and it even consumes more power at idle than last month’s overclocked system. The small overclock achieved with this month’s graphics card led to a much smaller increase in full GPU-load consumption compared to the increased power draw of the CPU clock speeds at full CPU load.

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