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Ivy Bridge 22nm Review: Intel Core i7-3770K and i5-3570K
by Guillaume Louel et Marc Prieur
Published on August 29, 2012

7-zip 9.2

7-zip has been added to our test protocol. In contrast to WinRAR, this application is highly multithreaded if its highest performance algorithm, LZMA2, is used. We measured the time required to compress a large volume of files.


The switch to Ivy Bridge brings less of a gain in 7-zip with an i5 gain of 6.5% and an improvement of 5.8% on the i7s. Highly multithreaded, the six-core Core i7s continue to dominate, while the AMD FX-8150 loses ground on the new LGA 1155 i7 range.
WinRAR 4.01


The same files were compressed in WinRAR using the ‘Best' RAR algorithm.


WinRAR doesn’t really use more than two cores for compression and the gains were quite modest: 6.1% on the i5s and 5.3% on the i7s. While the LGA 2011 processors are once again out front, they're only very slightly so and only on the processor with 15 MB of L3 cache. Although the AMD FX-8150 does well in intensively multithreaded tasks, here it loses quite a bit of ground.

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