Review: Intel Core i5-4690K Devil's Canyon (22nm Haswell)

Benchmarks: Power Consumption

The simple explanation for why the OC system pulls more juice is down to a combination of increased CPU speed and voltage.

Yet modern systems are very power efficient when compared to similar PCs from even five years' ago. Running at full speed on the CPU alone, which admittedly isn't great from a gaming point of view, means that power consumption is still well below 100W.