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OCZ Vertex 450 Solid State Drive Review

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AS-SSD Benchmark

Alex Schepeljanski of Alex Intelligent Software develops the free AS SSD Benchmark utility for testing storage devices. The AS SSD Benchmark tests sequential read and write speeds, input/output operational performance, and response times.

AS-SSD Benchmark 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.

Beginning with sequential transfer performance, the 256GB OCZ Vertex 450 solid state drive produced speeds up to 496.33 MB/s for reads and 492.02 MB/s writes. Single-threaded 4K IOPS performance tests deliver 20.63 MB/s read and 66.49 MB/s write, while the 64-thread 4K reads recorded 326.98 MB/s and write performance was at 304.75 MB/s.

ASSD-Benchmark-OCZ-Vertex-450.png

AS-SSD 64-thread 4KB IOPS performance results are displayed in the chart below, which compares several enthusiast-level storage products currently on the market. In the 64-thread 4KB IOPS performance tests, the 256GB OCZ Vertex 450 SSD easily surpassed much of the competition, and nearly matched performance with the original Vertex 4 solid state drive.

The chart below is sorted by total combined performance, which helps illustrate which products offer the best operational input/output under load:

AS-SSD-Benchmark_Results.png

In the next section, Benchmark Reviews tests transfer rates using ATTO Disk Benchmark.


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