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IO Meter - 4 KB Random Access Performance
External Drives |
Interface |
Read Speed |
Write Speed |
Average |
Difference |
64 GB OCZ Enyo |
USB 3.0 |
20.88 MB/s |
7.98 MB/s |
14.43 MB/s |
+ 8646% |
64 GB OCZ Enyo |
USB 2.0 |
8.19 MB/s |
8.11 MB/s |
8.15 MB/s |
+ 4839% |
16 GB Kingston DT Ultimate 3.0 |
USB 3.0 |
5.52 MB/s |
0.68 MB/s |
3.10 MB/s |
+ 1779% |
16 GB Kingston DT Ultimate 3.0 |
USB 2.0 |
4.06 MB/s |
0.79 MB/s |
2.40 MB/s |
+ 1370% |
1.5 TB Seagate FreeAgent GoFlex |
USB 3.0 |
0.17 MB/s |
0.16 MB/s |
0.17 MB/s |
Baseline |
1.5 TB Seagate FreeAgent GoFlex |
USB 2.0 |
0.17 MB/s |
0.15 MB/s |
0.16 MB/s |
- 3.0% |
500 GB WD My Passport Essential |
USB 2.0 |
0.15 MB/s |
0.17 MB/s |
0.16 MB/s |
- 3.0% |
1 TB Seagate FreeAgent GoFlex |
USB 2.0 |
0.17 MB/s |
0.15 MB/s |
0.16 MB/s |
- 3.0% |
1 TB Seagate FreeAgent GoFlex |
USB 3.0 |
0.17 MB/s |
0.15 MB/s |
0.16 MB/s |
- 3.0% |
500 GB WD My Passport Essential |
USB 3.0 |
0.14 MB/s |
0.16 MB/s |
0.15 MB/s |
- 9.1% |
This is the most important test for those who intend to use the FreeAgent GoFlex as a portable boot drive. In this small random access test, the 1.5 TB FreeAgent GoFlex did poorly compared to the flash-based Kingston DataTraveler Ultimate 3.0 and OCZ Enyo drives. That said, it was the fastest HDD-based portable drive in this comparison.
IO Meter - 512 KB Random Access Performance
External Drives |
Interface |
Read Speed |
Write Speed |
Average |
Difference |
64 GB OCZ Enyo |
USB 3.0 |
130.60 MB/s |
99.59 MB/s |
115.10 MB/s |
+ 670.9% |
16 GB Kingston DT Ultimate 3.0 |
USB 3.0 |
69.32 MB/s |
4.86 MB/s |
37.09 MB/s |
+ 148.4% |
64 GB OCZ Enyo |
USB 2.0 |
35.48 MB/s |
30.88 MB/s |
33.18 MB/s |
+ 122.2% |
16 GB Kingston DT Ultimate 3.0 |
USB 2.0 |
31.30 MB/s |
5.71 MB/s |
18.51 MB/s |
+ 23.9% |
1.5 TB Seagate FreeAgent GoFlex |
USB 3.0 |
16.40 MB/s |
13.46 MB/s |
14.93 MB/s |
Baseline |
1 TB Seagate FreeAgent GoFlex |
USB 3.0 |
16.09 MB/s |
13.03 MB/s |
14.56 MB/s |
- 2.5% |
500 GB WD My Passport Essential |
USB 3.0 |
17.23 MB/s |
11.48 MB/s |
14.36 MB/s |
- 3.9% |
1.5 TB Seagate FreeAgent GoFlex |
USB 2.0 |
13.62 MB/s |
13.35 MB/s |
13.49 MB/s |
- 9.7% |
1 TB Seagate FreeAgent GoFlex |
USB 2.0 |
13.26 MB/s |
13.59 MB/s |
13.43 MB/s |
- 10.0% |
500 GB WD My Passport Essential |
USB 2.0 |
14.44 MB/s |
12.36 MB/s |
13.40 MB/s |
- 10.2% |
When it came to large 512 KB random accesses, the 1.5 TB FreeAgent GoFlex remained the fastest HDD-based portable drive in the comparison. However, it was still much slower at random accesses than flash-based drives like the Kingston DataTraveler Ultimate 3.0 and the OCZ Enyo.
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