|Crucial RealSSD-C300 SATA-III 6Gbps SSD|
|Reviews - Featured Reviews: Storage|
|Written by Olin Coles|
|Wednesday, 03 February 2010|
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HD Tune Pro Benchmarks
The latest edition of HD Tune Pro allows random access read and write testing, a feature not available to other similar software benchmark tools. HD-Tune is a low-level test that will not operate on a drive which contains a partition, so Benchmark Reviews uses DISKPART to prepare hardware and remove any partitions before conducting these tests.
Random Access tests are divided into 512b, 4KB, 64KB, 1MB and random size test files sizes. The Random Access test measures the performance of random read or write operations. The amount of data which will be read varies from 512 bytes to 1 MB. Performance is reported in operations per second (IOPS), average access time, and average speed. Because it is our intent to compare one product against another, Benchmark Reviews has focused on 4KB and random transfer size IOPS performance.
Benchmark Reviews has tested the 256GB Crucial RealSSD-C300 against a collection of top-performing desktop storage drives for our IOPS benchmarks. The 4 KB random IOPS performance in HD-Tune measured 7941 for read IO, and 2451 for write. In comparison, the 4KB read IOPS was ahead of Corsair's X256 SSD which scored 7444, and the Vertex Turbo's 7272. Alternatively, both the Vertex Turbo (17358 4KB write IOPS) and Corsair X256 (16244) SSDs are well ahead of the CTFDDAC256MAG-1G1 in terms of IOPS write-to performance.
The tight range of IO is an indicator of operational bottlenecks. For example, the WD VelociRaptor WD3000HLFS SATA Hard Disk Drive indicates a total read-IOPS range of 10-150 whereas the average SSD might offer 200-1,000. As a direct result, in most cases SSDs will offer a much higher IO over their hard disk counterparts. The random read/write operations per second is charted below:
Our test results were obtained after each SSD had been prepared using the DISKPART program with the "clean all" command, and in the case of products using the Indilinx Barefoot controller they were further prepared with the Sanitary Erase application. In our tests we discovered that the maximum performance results (charted) would decay as subsequent tests were performed, even with TRIM available. As a word of caution, alignment and garbage collection applications offer immediate but temporary restoration of original 'pristine' performance levels.
Benchmark Reviews measures I/O Response Time and IOPS performance using the Iometer tool in our next section...