|SSD Benchmark Tests: SATA IDE vs AHCI Mode|
|Articles - Featured Guides|
|Written by Olin Coles|
|Thursday, 15 April 2010|
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SSD Test Methodology
Solid State Drive storage products arrive with unused 'clean' NAND flash, and as data is written these modules become used and 'dirty'. For the purpose of this article, Benchmark Reviews used the DISKPART command line program with the 'clean all' instruction to condition each storage device prior to testing. In the case of products using the Indilinx Barefoot controller, the SSD was further prepared with the Sanitary Erase application.
As a word of caution, applications such as Sanitary Erase (SE) and Wiper offer immediate but temporary restoration of original 'pristine' performance levels. These performance levels are not representative to real-world performance. SSDs attached to TRIM-enabled Operating System's will benefit from continuously restored like-new NAND performance, whereas older O/S's will require a garbage collection (GC) tool to avoid 'dirty NAND' performance degradation.
It's critically important to understand that no software can accurately measure SSD performance in relation to the real-world experience. Synthetic benchmark tools are helpful indicators, but should not be considered the ultimate determining factor for any SSD purchase. Benchmark Reviews includes both bandwidth speed and operational IOPS tests to present a conclusive measurement of product performance under 'pristine' NAND conditions.
Drive Hardware Tested
The following storage hardware has been used in our benchmark performance testing, and may be included in portions of this article:
Test Results Disclaimer
This article utilizes benchmark software tools to produce operational IOPS performance and bandwidth speed results. Each test was conducted in a specific fashion, and repeated for all products. These test results are not comparable to any other benchmark application, neither on this website or another, regardless of similar IOPS or MB/s terminology in the scores. The test results in this project are only intended to be compared to the other test results conducted in identical fashion for this article.