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IO Meter
We compared the 750 GB Western Digital Scorpio Black to the 500 GB Western Digital Scorpio Black (WD5000BEKT), which is a non-AFT drive so you can see the performance difference between the newer Scorpio Black models that support AFT (BPKT) and the older non-AFT Scorpio Black models (BEKT).
Throughput (Random Access)
Test |
WD Scorpio Black |
WD Scorpio Black |
Difference |
|
512 KB Read |
17.88 MB/s |
23.61 MB/s |
- 24.3% |
|
512 KB Write |
17.31 MB/s |
34.19 MB/s |
-49.4% |
|
4 KB Read |
0.24 MB/s |
0.26 MB/s |
-7.7% |
|
4 KB Write |
0.24 MB/s |
0.50 MB/s |
-52.0% |
Random Access Time
Test |
WD Scorpio Black |
WD Scorpio Black |
Difference |
|
512 KB Read |
27.94 ms |
21.16 ms |
+ 32.0% |
|
512 KB Write |
28.87 ms |
14.62 ms |
+ 97.5% |
|
4 KB Read |
16.08 ms |
14.81 ms |
+ 8.6% |
|
4 KB Write |
16.01 ms |
7.84 ms |
+ 104.2% |
CPU Utilization (Random Access)
Test |
WD Scorpio Black |
WD Scorpio Black |
Difference |
|
512 KB Read |
0.08% |
0.22% |
- 63.6% |
|
512 KB Write |
0.12% |
0.18% |
- 33.3% |
|
4 KB Read |
0.08% |
0.23% |
- 65.2% |
|
4 KB Write |
0.08% |
0.23% |
- 65.2% |
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