TEST
YOUR USB

WD (ExtHD)

Elements 25A2 500GB

▲ 500 ▼

Release date ≈ Q2 2016.

Average Bench: 30.4% (96th of 639)

Based on 1,804 user benchmarks.  Device: VID 1058 PID 25a2 Model: WD Elements 25A2
Poor: 14%Average: 30.4% Great: 57%

Poor average bench

The WD Elements 25A2 500GB averaged 69.5% 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 10.7MB/s
Avg. 4K Random Write Speed 2.25MB/s

Average consistency

The range of scores (95th - 5th percentile) for the WD Elements 25A2 500GB is 42.6%. This is a relatively wide range which indicates that the WD Elements 25A2 500GB performs inconsistently under varying real world conditions.

Weaknesses

Avg. 4K-64Thread Read Speed 0.4MB/s
Avg. 4K Random Read Speed 0.66MB/s
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Average Bench

(Based on 1,804 samples)
Rank 9630.4%
Min Avg Max
27.6 Read 66.8 141
22.7 Write 63.3 115
20.9 Mixed 42.5 73.9
21.5 SusWrite 62.6 110
78.8% 58.8 MB/s
Min Avg Max
0.5 4K Read 0.66 1.5
0.6 4K Write 2.25 4.5
0.3 4K Mixed 0.75 0.9
105% 1.22 MB/s
Min Avg Max
0.4 DQ Read 0.4 0.4
9.9 DQ Write 10.7 11.1
0.5 DQ Mixed 0.58 0.6
384% 3.88 MB/s
User Benchmarks BenchSequentialRandom 4kDeep queue 4k
The fastest USB (mainstream) averages a speed of 100%
379GB free, PID 25a2
Operating at USB 3.1 Speed
SusWrite @10s intervals: 109 109 109 111 100 102 MB/s
53.5% Above average
Read 113
Write 92.4
Mixed 69.8
SusWrite 106
127% 95.5 MB/s
4K Read 1.6
4K Write 4.4
4K Mixed 0.3
166% 2.1 MB/s
235GB free, PID 25a2
Operating at USB 3.1 Speed
SusWrite @10s intervals: 97 97 95 96 94 96 MB/s
49.5% Average
Read 101
Write 72.9
Mixed 69.5
SusWrite 96
113% 84.9 MB/s
4K Read 1.5
4K Write 4.4
4K Mixed 0.4
169% 2.1 MB/s
207GB free, PID 25a2
Operating at USB 3.0 Speed
SusWrite @10s intervals: 76 76 77 57 75 76 MB/s
32.4% Below average
Read 76.7
Write 45.8
Mixed 47.3
SusWrite 72.8
79% 60.7 MB/s
4K Read 0.6
4K Write 1.7
4K Mixed 0.7
84% 1 MB/s
59GB free, PID 25a2
Operating at USB 2.1 Speed
SusWrite @10s intervals: 33 32 33 33 32 33 MB/s
18.4% Very poor
Read 53.2
Write 33.7
Mixed 25.8
SusWrite 32.6
46% 36.3 MB/s
4K Read 0.9
4K Write 1.1
4K Mixed 0.9
71% 0.97 MB/s
1,804 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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