TEST
YOUR USB

BUFFALO (ExtHD)

HD-PZU3 500GB

▲ 500 ▼

Release date ≈ Q3 2014.

Average Bench: 26.7% (134th of 639)

Based on 130 user benchmarks.  Device: VID 0411 PID 01f9 Model: BUFFALO HD-PZU3
Poor: 12%Average: 26.7% Great: 41%

Very poor average bench

The BUFFALO HD-PZU3 500GB averaged 73.3% lower than the peak scores attained by the group leaders. This isn't a great result which indicates that there are much faster alternatives on the comparison list.

Strengths

Avg. 4K Random Write Speed 1.61MB/s
Avg. Sustained Write Speed 55.5MB/s

Good consistency

The range of scores (95th - 5th percentile) for the BUFFALO HD-PZU3 500GB is 29.5%. This is a relatively narrow range which indicates that the BUFFALO HD-PZU3 500GB performs reasonably consistently under varying real world conditions.

Weaknesses

Avg. 4K Random Read Speed 0.43MB/s
Avg. Sequential Read Speed 60MB/s
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Average Bench

(Based on 130 samples)
Rank 13426.7%
Min Avg Max
24.8 Read 60 97.9
19 Write 53.5 95.1
18.9 Mixed 42.9 78
10.9 SusWrite 55.5 104
71% 53 MB/s
Min Avg Max
0.16 4K Read 0.43 0.52
0.37 4K Write 1.61 2.3
0.13 4K Mixed 0.51 0.84
73.7% 0.85 MB/s
User Benchmarks BenchSequentialRandom 4kDeep queue 4k
The fastest USB (mainstream) averages a speed of 100%
466GB free, PID 01f9
Operating at USB 3.0 Speed
SusWrite @10s intervals: 132 135 132 133 135 135 MB/s
54.1% Above average
Read 133
Write 130
Mixed 37.9
SusWrite 134
143% 109 MB/s
4K Read 0.7
4K Write 1.8
4K Mixed 0.6
84% 1.03 MB/s
466GB free, PID 01f9
Operating at USB 3.0 Speed
SusWrite @10s intervals: 133 132 134 135 135 135 MB/s
53.4% Above average
Read 128
Write 135
Mixed 32.5
SusWrite 134
142% 107 MB/s
4K Read 0.7
4K Write 1.8
4K Mixed 0.7
88% 1.07 MB/s
183GB free, PID 01f9
Operating at USB 3.0 Speed
SusWrite @10s intervals: 88 100 99 100 101 101 MB/s
40.5% Average
Read 88.2
Write 55.9
Mixed 54.4
SusWrite 98.2
98% 74.2 MB/s
4K Read 0.5
4K Write 2
4K Mixed 0.9
100% 1.13 MB/s
32GB free, PID 01f9
Operating at USB 3.0 Speed
SusWrite @10s intervals: 46 56 57 56 56 57 MB/s
30.6% Below average
Read 108
Write 22.4
Mixed 45.1
SusWrite 54.5
67% 57.4 MB/s
4K Read 0.3
4K Write 1
4K Mixed 0.7
59% 0.67 MB/s
398GB free, PID 01f9
Operating at USB 3.0 Speed
SusWrite @10s intervals: 62 67 67 69 68 69 MB/s
29.7% Poor
Read 67.5
Write 52
Mixed 37
SusWrite 67
74% 55.9 MB/s
4K Read 0.5
4K Write 1.7
4K Mixed 0.7
84% 0.97 MB/s
130 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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