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AS SSD Benchmark (SSD)
AS SSD Benchmark is a simple and easy-to-use SSD benchmark by Alex Intelligent Software. It not only tests the drive's sequential transfer rates and access times, but also its performance at both single-threaded and multi-threaded 4K IOPS.
In these tests, the Western Digital Black² performed admirably in sequential transfers and multi-threaded, multiple transfer scenarios, coming in close to the performance of the Intel 520 Series SSD. It only faltered in the single-threaded 4K IOPS test.
Sequential Transfers
Solid State Drive |
Read + Write Average |
Difference |
Quick Links |
OCZ Vector |
500.3 MB/s |
+ 78.3% |
|
Intel 520 Series |
293.9 MB/s |
+ 4.7% |
|
Western Digital Black² |
280.6 MB/s |
Baseline |
|
Western Digital SiliconEdge Blue |
198.3 MB/s |
- 29.3 % |
|
Intel X25-M G2 (34 nm) |
179.0 MB/s |
- 36.2 % |
|
OCZ Vertex 2 (E) |
172.3 MB/s |
- 38.6 % |
|
Corsair Force Series F90 |
140.0 MB/s |
- 50.1 % |
Single-Threaded 4K IOPS Performance
Solid State Drive |
Read + Write Average |
Difference |
Quick Links |
Intel 520 Series |
45.7 MB/s |
+ 30.7% |
|
OCZ Vertex 2 (E) |
40.6 MB/s |
+ 16.2% |
|
Corsair Force Series F90 |
39.9 MB/s |
+ 14.0% |
|
OCZ Vector |
38.6 MB/s |
+ 10.4% |
|
Western Digital Black² |
35.0 MB/s |
Baseline |
|
Intel X25-M G2 (34 nm) |
30.7 MB/s |
- 12.2 % |
|
Western Digital SiliconEdge Blue |
16.7 MB/s |
- 52.2 % |
Multi-Threaded 4K IOPS Performance
Solid State Drive |
Read + Write Average |
Difference |
Quick Links |
OCZ Vector |
338.6 MB/s |
+ 105.3% |
|
Intel 520 Series |
177.5 MB/s |
+ 7.6% |
|
Western Digital Black² |
164.9 MB/s |
Baseline |
|
Intel X25-M G2 (34 nm) |
125.2 MB/s |
- 24.1 % |
|
OCZ Vertex 2 (E) |
122.1 MB/s |
- 26.0 % |
|
Corsair Force Series F90 |
118.1 MB/s |
- 28.4 % |
|
Western Digital SiliconEdge Blue |
16.8 MB/s |
- 89.8 % |
Access Time
Solid State Drive |
Read + Write Average |
Difference |
Quick Links |
OCZ Vector |
0.07 ms |
- 43.5% |
|
Intel X25-M G2 (34 nm) |
0.09 ms |
- 25.3% |
|
Western Digital Black² |
0.12 ms |
Baseline |
|
OCZ Vertex 2 (E) |
0.15 ms |
+ 24.5 % |
|
Corsair Force Series F90 |
0.16 ms |
+ 34.2 % |
|
Intel 520 Series |
0.16 ms |
+ 36.3 % |
|
Western Digital SiliconEdge Blue |
0.22 ms |
+ 84.4 % |
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• The Western Digital Black² Dual Drive |
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• Peeking Under The PCB, SSD Controller |
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• Testing The Black², Usable Capacities |
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