Articles: CPU

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Archiving and Encryption

To test the processors performance during data archiving we resort to WinRAR archiving utility. Using maximum compression rate we archive a folder with multiple files 560 MB in total size.

As for performance in WinRAR, Core i5-2500, Core i5-2400 and Core i5-2300 are comparable with the LGA1366 Core i7 modifications working at the same frequencies. It means that, for example, Core i5-2500 will be faster than any of the Bloomfields.

The processor performance during encryption is measured with an integrated benchmark from a popular cryptographic utility called TrueCrypt. I have to say that it can not only effectively utilize any number of processor cores, but also supports special AES instructions.

Encryption is a process that can be well paralleled, so the six-core Phenom II X6 can finally turn things around here. The good old Core i7 CPUs look just as good as the new processors due to Hyper-Threading technology support. However, it doesn’t prevent Core i5-660 and Core i5-760 from losing up to 40% to their successors.

Image Editing

We measured the performance in Adobe Photoshop using our own benchmark made from Retouch Artists Photoshop Speed Test that has been creatively modified. It includes typical editing of four 10-megapixel images from a digital photo camera.

The advantages of the new LGA1155 platform are obvious in Adobe Photoshop. The new Core i5 CPUs win up to 50% from their predecessors and significantly outperform different Core i7 models, too. In other words, the new microarchitecture is obviously winning in Photoshop over Nehalem, and especially over the competitor solutions.

We have also performed some tests in Adobe Photoshop Lightroom 3 program. The test scenario includes post-processing and export into JPEG format of a hundred 8-megapixel images in RAW format.

Lightroom3 is an application that uses the maximum of available computational resources. However, it doesn’t prevent Sandy Bridge products from catching up with and leaving behind their six-core competitors and predecessors supporting Hyper-Threading technology. However, there is nothing strange about it, actually. The success of new processors in popular applications rests on three factors: improved microarchitecture with higher dedicated throughput, higher clock frequencies, and faster memory and cache.

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