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.

Total System Power Consumption
Tested at the Outlet

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.

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