Next goes our homemade test of defragmentation speed. We created a very defragmented file system on a 32GB partition of a disk by loading it with music, video, games and applications. Then we saved a per-sector copy of the disk and now copy it to the disk we want to test. Next we run a script that evokes the integrated defragmenter of Windows 7 and marks the time of the beginning and end of the defragmentation process. For more information about this test, you can refer to this article.
The more we test HDDs with this application, the more unpredictable the results get. Although we can note some general trends, it is hard to predict the winner in a particular test session. Here, the Hitachi 7K500 is the winner, followed by the Momentus XT and Constellation ES which spend over a minute more.
Performance in WinRAR
Now we are going to show you one more interesting test in which we use WinRAR version 3.91 to compress and then uncompress a 1.13GB folder with 8118 files in 671 subfolders. The files are documents and images in various formats. These operations are done on the tested drive. This test depends heavily on CPU performance, but the storage device affects its speed, too.
The Momentus XT performs this task faster than its opponents. This HDD seems to have found a way to make use of its flash memory.
The Momentus XT cannot repeat the same trick when unpacking the archive, so the top places are taken by the Hitachi and the Constellation ES.