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SanDisk Extreme II Solid State Drive SDSSDXP Review

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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 P67 chipset configured to use 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.

CrystalDiskMark uses compressed data, so sequential file transfer speeds are reported lower than with other tools using uncompressed data. For this reason, we will concentrate on the operational IOPS performance in this section.

CrystalDiskMark 3.0 reports sequential speeds reaching 532.5 MB/s reads and 498.7 MB/s writes. 512K test results reached 326.0 MB/s read and 455.7 MB/s write performance. 4K tests produced 31.93 read and 75.24 write performance. All CrystalDiskMark results produced by this 240GB SanDisk Extreme II SSD were roughly equal to many of the top drives, but were not high enough to surpass OCZ’s Vector solid state drive.

CDM-SanDisk-SSD-Extreme-II

Maximum 4KB IOPS performance results at queue depth 32 are reported in the chart below. These values represent the performance levels for several enthusiast-level storage solutions, and illustrates which products offer the best operational performance under load:

CrystalDiskMark-4K_Results-SanDisk-Extreme-II-SSD

In the next section, we continue our testing using Iometer to measure input/output performance…


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