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Western Digital SiliconEdge Blue 256 GB Solid State Drive Review Rev. 3.0
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Testing The SiliconEdge Blue

The Testbed


Intel Core i7-965 Extreme Edition


ASUS P6T Deluxe (Intel X58 Express)


Three Kingmax 2 GB DDR3-1333 modules

Graphics Card

Galaxy GeForce GTX 260+ OC

Hard Drives

2 TB Western Digital Caviar Black
2 TB Western Digital Caviar Green
600 GB Western Digital VelociRaptor
256 GB Western Digital SiliconEdge Blue
160 GB Intel X25-M G2 (34 nm)

128 GB Super Talent UltraDrive GX
120 GB OCZ Vertex 2 (E)
90 GB Corsair F90
64 GB Kingston SSDNow V+ (Gen 2)
60 GB OCZ Agility 2 (E)

Operating System

Microsoft Windows 7 64-bit
Microsoft Windows Vista 32-bit


Testing Methodology

We tested exclusively in Windows Vista and Windows 7, with the latest updates. We chose to use IO Meter 2008 as well as our "old faithful", WinBench 99 2.0, with the following tests :

  • Platter Data Transfer Profile
  • Business Disk WinMark 99
  • High-End Disk WinMark 99
  • Disk Transfer Rate (Beginning)
  • Disk Transfer Rate (End)

Business Disk WinMark 99 is a real-world simulation based on three office application suites - Microsoft Office 97, Lotus SmartSuite and Corel WordPerfect Suite 8, as well as a web browser, Netscape Navigator. They are quite dated, but should still reflect the usage patterns of users in an office environment using such applications. The test runs through a script that keeps multiple applications open, while it performs tasks that switches between those applications and Netscape Navigator. The result is the average transfer rate during the script run.

High-End Disk WinMark 99 is a real-world simulation based on AVS/Express 3.4, FrontPage 98, MicroStation SE, Photoshop 4.0, Premiere 4.2, Sound Forge 4.0 and Visual C++ 5.0. However, it differs by running the applications serially, instead of simultaneously. There are individual results for each application but in this comparison, we will be looking only at the weighted average score, which is the average transfer rate during the tests.

Unfortunately, WinBench 99 seemed to have some issues with Windows Vista, or the current Vista driver for the SATA controller. It would register a SetFilePointer error in the Disk Access Time test. So, we were not able to obtain any Disk Access Time results.

The IO Meter 2008 tests were carried out with the alignment set at 4 KB. In addition, we tested each drive with repetitive (compressible) and random (non-compressible) data, and used the average of the two results. This will give us a more accurate representation of how the drive will perform in real life.


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Western Digital Solid State Drives


The WD SiliconEdge Blue 256 GB SSD
Usable Capacity


The Connectors
SSD Maintenance


Testing The SiliconEdge Blue


Surface Temperature
Transfer Rate Profile


WinBench 99 Test Results
Transfer Rate Range


IO Meter Random Access Performance


IO Meter Sequential Access Performance


IOPS Scaling (Random Access)


IOPS Scaling (Sequential Access)



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