TEST
YOUR USB

WD (ExtHD)

Elements 25A2 1TB

▲ 503 ▼

Release date ≈ Q1 2016.

Average Bench: 37.4% (52nd of 639)

Based on 31,808 user benchmarks.  Device: VID 1058 PID 25a2 Model: WD Elements 25A2
Poor: 14%Average: 37.4% Great: 63%

Poor average bench

The WD Elements 25A2 1TB averaged 62.5% 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-64Thread Write Speed 9.64MB/s
Avg. 4K Random Write Speed 3.06MB/s

Average consistency

The range of scores (95th - 5th percentile) for the WD Elements 25A2 1TB is 48.6%. This is a relatively wide range which indicates that the WD Elements 25A2 1TB performs inconsistently under varying real world conditions.

Weaknesses

Avg. 4K-64Thread Read Speed 0.38MB/s
Avg. 4K Random Read Speed 0.83MB/s
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Average Bench

(Based on 31,808 samples)
Rank 5237.4%
Min Avg Max
28.8 Read 80 144
23.5 Write 75.6 116
21.3 Mixed 51.3 82.3
22.6 SusWrite 74.4 114
94.2% 70.3 MB/s
Min Avg Max
0.4 4K Read 0.83 1.7
1 4K Write 3.06 6.75
0.3 4K Mixed 0.67 0.9
130% 1.52 MB/s
Min Avg Max
0.3 DQ Read 0.38 0.4
7.9 DQ Write 9.64 11
0.4 DQ Mixed 0.59 0.8
349% 3.54 MB/s
User Benchmarks BenchSequentialRandom 4kDeep queue 4k
The fastest USB (mainstream) averages a speed of 100%
917GB free, PID 25a2
Operating at USB 3.0 Speed
SusWrite @10s intervals: 110 108 109 109 109 110 MB/s
63.8% Good
Read 128
Write 116
Mixed 71.9
SusWrite 109
141% 106 MB/s
4K Read 0.8
4K Write 6.9
4K Mixed 0.4
251% 2.7 MB/s
513GB free, PID 25a2
Operating at USB 3.0 Speed
SusWrite @10s intervals: 103 101 101 102 100 100 MB/s
55.6% Above average
Read 135
Write 105
Mixed 83.1
SusWrite 101
138% 106 MB/s
4K Read 0.9
4K Write 4.5
4K Mixed 0.3
167% 1.9 MB/s
327GB free, PID 25a2
Operating at USB 3.1 Speed
SusWrite @10s intervals: 82 81 82 81 81 80 MB/s
47.1% Average
Read 110
Write 88.7
Mixed 66.4
SusWrite 81
113% 86.6 MB/s
4K Read 1.1
4K Write 4.3
4K Mixed 0.4
164% 1.93 MB/s
230GB free, PID 25a2
Operating at USB 3.1 Speed
SusWrite @10s intervals: 76 78 79 79 78 79 MB/s
36.4% Below average
Read 88.2
Write 89.5
Mixed 53.4
SusWrite 78
103% 77.3 MB/s
4K Read 0.6
4K Write 2.1
4K Mixed 0.8
101% 1.17 MB/s
320GB free, PID 25a2
Operating at USB 2.1 Speed
SusWrite @10s intervals: 41 41 41 41 41 41 MB/s
22.5% Poor
Read 40.1
Write 41.1
Mixed 29.6
SusWrite 41.2
52% 38 MB/s
4K Read 1.2
4K Write 2.4
4K Mixed 0.9
117% 1.5 MB/s
543GB free, PID 25a2
Operating at USB 2.1 Speed
SusWrite @10s intervals: 38 39 39 38 39 39 MB/s
20.2% Poor
Read 50
Write 37.7
Mixed 30
SusWrite 38.6
51% 39.1 MB/s
4K Read 0.8
4K Write 1.4
4K Mixed 0.8
78% 1 MB/s
31,808 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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