Intel Core i5-750 , I7 870 and P55

20. Gaming22. Memory Performance: 8Gb-1600MHz vs. 4GB-2000MHz


Turbo Mode Performance

As mentioned earlier in the review both the i5-750 and i7-870 offer Turbo Boost Technology. Turbo Boost allows the processor to increase its speed across the various cores depending on the workload. As an example, if all four cores are being used it may increase the multiplier on each by 1x turning a 2.93GHz CPU into a 3.06GHz model. If only one core is being used the increase may be a higher on that core. To test the impact this has on performance we ran each processor through a single and multi-core test to check the impact.



In our multi-core video performance test the 750 hit a maximum speed of 2.8GHz, up from 2.66GHz. The 870 went from 2.93GHz to 3.06GHz. In single core music conversion testing the 750 hit 2.93GHz with the 870 rising as high as 3.3GHz.

In terms of performance increases this meant that on video encoding the i5-750 was now a match for AMDs Phenom 2 965BE and the 870 finished a minute faster. The same trend of results was visible in the music conversion test where the 750 exceeded the 965BE and the 870 increased its performance advantage by 22 seconds.

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