Intel Core i7-3770K Ivy Bridge Processor Review
Total System Power Consumption
Throughout all of our benchmarking and testing, we also monitored how much power our test systems consumed using a power meter. Our goal was to give you all an idea as to how much power each configuration used while idling and while under a heavy workload. Please keep in mind that we were testing total system power consumption at the outlet here, not just the power being drawn by the processors alone.
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Power consumption with the Ivy Bridge-based Core i7-3770K is nothing short of excellent. When using the processor's integrated graphics, our test system consumed only 43 watts at idle and 102 watts under load--by far the lowest of the bunch. With a discrete GPU installed, the Core i7-3770K-based system was once again the lowest of the group, coming in below the Core i7-2700K by a few watts under both idle and load conditions.
We also monitored power consumption with our Ivy Bridge based test system while overclocking. In its stock configuration (with a discrete GPU installed), the Core i7-3770K-based system pulled 159 watts from the outlet under load. While overclocked to roughly 4.6GHz with a core voltage of 1.295 volts, power consumption only jumped to 200 watts. That's a sizable increases for sure, but nothing like the huge jumps we saw with Sandy Bridge-E.
