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IO Meter
In these tests, we compared the performance of Seagate FreeAgent GoFlex 500 GB with its standard USB 2.0 adaptor against the performance of the drive with the USB 3.0 adaptor upgrade.
Throughput (Sequential Access)
Test |
USB 3.0 |
USB 2.0 |
Difference |
512 KB Read |
81.45 MB/s |
35.44 MB/s |
+ 129.8% |
512 KB Write |
80.94 MB/s |
29.25 MB/s |
+ 176.7% |
4 KB Read |
24.37 MB/s |
7.68 MB/s |
+ 217.3% |
4 KB Write |
28.08 MB/s |
7.77 MB/s |
+ 261.4% |
Sequential Access Time
Test |
USB 3.0 |
USB 2.0 |
Difference |
512 KB Read |
6.14 ms |
14.10 ms |
- 56.5% |
512 KB Write |
6.18 ms |
17.09 ms |
- 63.8% |
4 KB Read |
0.16 ms |
0.51 ms |
- 68.6% |
4 KB Write |
0.14 ms |
0.50 ms |
- 72.0% |
CPU Utilization (Sequential Access)
Test |
USB 3.0 |
USB 2.0 |
Difference |
512 KB Read |
0.70% |
0.98% |
- 28.6% |
512 KB Write |
0.78% |
0.97% |
- 19.6% |
4 KB Read |
3.67% |
3.28% |
+ 11.9% |
4 KB Write |
4.94% |
3.39% |
+ 45.7% |
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• Overview |
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• The 500 GB FreeAgent GoFlex |
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