|Seagate Momentus-XT Solid State Hybrid Drive|
|Reviews - Featured Reviews: Storage|
|Written by Olin Coles|
|Monday, 24 May 2010|
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CrystalDiskMark 3.0 Tests
CrystalDiskMark 3.0 is a file transfer and operational bandwidth benchmark tool from Crystal Dew World that offers performance transfer speed results using sequential, 512KB random, and 4KB random samples. For our test results chart below, the 4KB 32-Queue Depth read and write performance was measured using a 1000MB space. CrystalDiskMark requires that an active partition be set on the drive being tested, and all drives are formatted with NTFS on the Intel ICH10 controller set to AHCI-mode. Benchmark Reviews uses CrystalDiskMark to illustrate operational IOPS performance with multiple threads. In addition to our other tests, this benchmark allows us to determine operational bandwidth under heavy load.
Our tests of the Seagate Momentus-XT Solid State Hybrid Drive were each consistent, but only the maximum speeds were charted below. Sequential tests on the Seagate Momentus-XT produced a maximum read speed of 110 MB/s, while the write speed measured 107 MB/s. The sequential file transfer speeds have traditionally been low with this benchmark tool, which is why we will concentrate on the operational IOPS performance for this section.
CrystalDiskMark 3.0 reported 512K results of 47 MB/s read and 57 MB/s write performance. 4K tests produced 0.62 read and 1.06 write performance. 4KB queue depth 32 IOPS for the Seagate Momentus-XT measured only 1.35 read and 0.94 write IOPS. These results are much better than the desktop Seagate Barracuda XT, but not quite as good as the Western Digital VelociRaptor.
Displayed in the chart below, the maximum 4KB queue depth 32 IOPS performance results for several enthusiast-level storage products illustrate which products offer the best operation under load:
Adaptive Memory Technology Notice
The Seagate Momentus-XT Solid State Hybrid Drive employs a proprietary Adaptive Memory technology that improves application performance matching the highest usage patterns. In most cases, benchmark performance tools do not activate the hybrid SSD features of this storage device.