Intel Core i7-3770K Ivy Bridge CPU Review - PAGE 12

Turbo:

By now, both processor manufacturers had the occasion to reiterate their Turbo capability which had been disabled in all previous tests. Three benchmarks from the previous pages have been chosen and were run with Turbo enabled and disabled. Far Cry 2 and Call of Juarez have been chosen for their poor multi-threaded support, whereas 7-Zip has been chosen as a benchmark that makes use of all threads, but without capping the TDP.

In comparison to the previous generation processors, the Turbo Boost doesn't do quite as much as it did for the 2600K, but they are both close. In our labs, we observed a 6% performance increase when running standard tasks such as video editing, rendering and so on. The difference was much smaller in gaming scenarios though, as the performance increase was only around 1%.

Power Consumption:

To measure power usage, a Kill A Watt P4400 power meter was used. Note that the above numbers represent the power drain for the entire benchmarking system, not just the processors themselves. For the 'idle' readings we measured the power drain from the desktop, with no applications running; for the 'load' situation, we took the sustained peak power drain readings at the end of a 30 minute OCCT power supply benchmark.

Wow! What else needs to be said. It is extremely impressive to see the whole system is only consuming 290W of power while the high-end processor is running at full speed. This made the 3770K more efficient than the 2600K by 16%, not to mention more efficient than the 2500K.