TEST
YOUR USB

BUFFALO (ExtHD)

HD-GDU3 2TB

▲ 500 ▼

Release date ≈ Q3 2015.

Average Bench: 152% (1st of 639)

Based on 185 user benchmarks.  Device: VID 0411 PID 0235 Model: BUFFALO HD-GDU3
Poor: 35%Average: 152% Great: 219%

Outstanding average bench

The BUFFALO HD-GDU3 2TB averaged 52.2% higher than the peak scores attained by the group leaders. This is an excellent result which ranks the BUFFALO HD-GDU3 2TB near the top of the comparison list.

Strengths

Avg. 4K-64Thread Write Speed 34.1MB/s
Avg. 4K Random Write Speed 25.3MB/s

Terrible consistency

The range of scores (95th - 5th percentile) for the BUFFALO HD-GDU3 2TB is 184%. This is a particularly wide range which indicates that the BUFFALO HD-GDU3 2TB performs inconsistently under varying real world conditions.

Weaknesses

Avg. Sustained Write Speed 71.1MB/s
Avg. Sequential Read Speed 204MB/s
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Average Bench

(Based on 185 samples)
Rank 1152%
Min Avg Max
30.4 Read 204 324
29.1 Write 289 402
26.4 Mixed 215 355
16.4 SusWrite 71.1 189
265% 195 MB/s
Min Avg Max
5.22 4K Read 22.7 34.1
6.74 4K Write 25.3 51
2.13 4K Mixed 16 26.1
1,491% 21.4 MB/s
Min Avg Max
11.9 DQ Read 24.8 37.3
19.5 DQ Write 34.1 64.7
3.95 DQ Mixed 12.8 22.3
1,687% 23.9 MB/s
User Benchmarks BenchSequentialRandom 4kDeep queue 4k
The fastest USB (mainstream) averages a speed of 100%
122GB free, PID 0235
Operating at USB 3.0 Speed
SusWrite @10s intervals: 95 1.2 1.2 1.2 1.1 1.1 MB/s
141% Outstanding
Read 312
Write 373
Mixed 258
SusWrite 16.8
312% 240 MB/s
4K Read 14.8
4K Write 28.7
4K Mixed 22.4
1,793% 22 MB/s
DQ Read 23.9
DQ Write 38.9
DQ Mixed 11.4
1,800% 24.7 MB/s
1TB free, PID 0235
Operating at USB 3.0 Speed
SusWrite @10s intervals: 147 187 185 186 186 186 MB/s
140% Outstanding
Read 271
Write 306
Mixed 268
SusWrite 180
348% 256 MB/s
4K Read 14.1
4K Write 18.8
4K Mixed 15.8
1,229% 16.2 MB/s
DQ Read 24.8
DQ Write 26.1
DQ Mixed 12.6
1,408% 21.2 MB/s
679GB free, PID 0235
Operating at USB 3.0 Speed
SusWrite @10s intervals: 99 0.7 0.7 74 116 118 MB/s
121% Outstanding
Read 270
Write 328
Mixed 316
SusWrite 68.1
331% 246 MB/s
4K Read 18.7
4K Write 20.5
4K Mixed 19.4
1,426% 19.5 MB/s
DQ Read 22.9
DQ Write 38.7
DQ Mixed 4.5
1,554% 22 MB/s
1TB free, PID 0235
Operating at USB 2.1 Speed
SusWrite @10s intervals: 39 39 39 40 40 40 MB/s
61.9% Good
Read 38.3
Write 39.2
Mixed 39.2
SusWrite 39.5
54% 39 MB/s
4K Read 22.7
4K Write 13.8
4K Mixed 17.7
1,156% 18.1 MB/s
DQ Read 18.4
DQ Write 19.1
DQ Mixed 10.8
1,085% 16.1 MB/s
655GB free, PID 0235
Operating at USB 2.1 Speed
SusWrite @10s intervals: 25 27 27 27 28 27 MB/s
22% Poor
Read 30.5
Write 30.3
Mixed 30.4
SusWrite 26.9
40% 29.5 MB/s
4K Read 11.9
4K Write 2.9
4K Mixed 7.2
388% 7.33 MB/s
185 MORE »
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  • Best user rated - User sentiment trumps benchmarks for this comparison.
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  • Fastest real world speed - Real World Speed measures performance for typical consumers.

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