Most of Intel's Core i5 and i7 CPUs lock out overclocking enthusiasts, which we hate. But the K-series chips win us back over with insane scalability. Would you believe that cranking the dial on performance doesn't necessarily tank overall efficiency?
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Combined Single/Multi-Thread Efficiency
Once again, the total power used is largely consistent. Whether you run the Core i7-2600K at 3.5 GHz or at 4.6 GHz has only little impact on efficiency. Let’s look at the overall efficiency summary on the next page.
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