Intel Core i7 2700k receives £20 price cut

Power consumption is a hot topic of conversation in recent months as people are paying more attention to their electricity bills and overall energy footprint.

We used a calibrated meter to measure the power at the wall.

Firstly we analysed the power drain when all systems were at reference clock speeds (Core i5 2500k @ 3.3ghz, Core i7 2600k @ 3.4ghz, Core i7 2700k @ 3.5ghz and FX 8150 @ 3.6ghz).

All systems were loaded with Cinebench R11.5 64 bit.

The Core i7 2700k consumes basically the same power as the Core i7 2600k, which is not a shocker. We still can't get over the FX 8150 BE power consumption at reference clocks, almost 100watts more at the socket than the 2600k.

Next we increased the processors to 4.6ghz, but cranked the Core i7 2700k to 5ghz at 1.5 volts.

At 5ghz, the Core i7 2700k consumes 293 watts when loaded with Cinebench 11.5 64 bit. When the FX 8150 is clocked at 4.6ghz, it consumes 406 watts at the socket. The Intel Core i7 processors are certainly much more efficient.

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