Overclocking Core i7-3770K: Learning To Live With Compromise

Overall Efficiency

As the diagram shows, Intel's 4.5 GHz Core i7-3770K beats the two competing platforms in our efficiency test, which consists of almost all the applications used in this article, by using the fewest Wh (watt-hours) of energy.

The Core i7-3770K's elapsed run time is the longest by just a hair, since the Sandy Bridge chip runs at higher clock rates and the Sandy Bridge-E processor boasts more cores. But Ivy Bridge’s clear win in the efficiency department outweighs its small performance disadvantage.

The verdict is in: under load, Ivy Bridge leads in performance per Wh. An overclocked Core i7-3770K is the new enthusiast-oriented efficiency champ.

The efficiency diagram documents our findings in visual form.

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  • Alatheia00
    Looks like Intel, deliberately restricted overclocking on their Ivy chips, by removing thermal paste to gain more future sales and save more on production costs.

    Absolutely no reason to purchase anything over a Sandy I7 2600K.
  • woldbur
    Looks like the Intel paste needs replacing.