TEST
YOUR USB

WD (ExtHD)

Elements 25A3 3TB

▲ 500 ▼

Release date ≈ Q3 2016.

Average Bench: 48.2% (24th of 639)

Based on 1,766 user benchmarks.  Device: VID 1058 PID 25a3 Model: WD Elements 25A3
Poor: 16%Average: 48.2% Great: 70%

Below average average bench

The WD Elements 25A3 3TB averaged 51.8% 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 11.4MB/s
Avg. 4K Random Write Speed 2.65MB/s

Below average consistency

The range of scores (95th - 5th percentile) for the WD Elements 25A3 3TB is 54%. This is a relatively wide range which indicates that the WD Elements 25A3 3TB performs inconsistently under varying real world conditions.

Weaknesses

Avg. 4K-64Thread Read Speed 0.62MB/s
Avg. 4K Random Read Speed 1.42MB/s
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Average Bench

(Based on 1,766 samples)
Rank 2448.2%
Min Avg Max
30 Read 111 170
26.4 Write 110 169
24.9 Mixed 84.7 125
24.2 SusWrite 108 168
140% 103 MB/s
Min Avg Max
0.7 4K Read 1.42 1.12
1.58 4K Write 2.65 2.9
0.7 4K Mixed 0.96 1.1
128% 1.67 MB/s
Min Avg Max
0.5 DQ Read 0.62 0.8
9.7 DQ Write 11.4 14
0.4 DQ Mixed 0.91 1.2
422% 4.32 MB/s
User Benchmarks BenchSequentialRandom 4kDeep queue 4k
The fastest USB (mainstream) averages a speed of 100%
940GB free, PID 25a3
Operating at USB 3.1 Speed
SusWrite @10s intervals: 126 158 160 162 160 161 MB/s
63.8% Good
Read 148
Write 153
Mixed 120
SusWrite 155
196% 144 MB/s
4K Read 1.1
4K Write 2.7
4K Mixed 1.1
133% 1.63 MB/s
979GB free, PID 25a3
Operating at USB 3.0 Speed
SusWrite @10s intervals: 151 149 148 144 147 144 MB/s
62.3% Good
Read 152
Write 147
Mixed 108
SusWrite 147
187% 138 MB/s
4K Read 1.1
4K Write 2.6
4K Mixed 1
126% 1.57 MB/s
514GB free, PID 25a3
Operating at USB 3.1 Speed
SusWrite @10s intervals: 116 119 118 118 118 119 MB/s
56.3% Above average
Read 156
Write 154
Mixed 111
SusWrite 118
180% 135 MB/s
4K Read 1
4K Write 2.5
4K Mixed 1
123% 1.5 MB/s
61GB free, PID 25a3
Operating at USB 2.1 Speed
SusWrite @10s intervals: 39 39 37 38 39 40 MB/s
22.1% Poor
Read 49.6
Write 38.6
Mixed 32.6
SusWrite 38.5
52% 39.8 MB/s
4K Read 1.4
4K Write 2
4K Mixed 1
107% 1.47 MB/s
2.5TB free, PID 25a3
Operating at USB 2.1 Speed
SusWrite @10s intervals: 40 40 40 40 40 41 MB/s
21.2% Poor
Read 39.2
Write 40.5
Mixed 32.7
SusWrite 40.2
52% 38.1 MB/s
4K Read 1.4
4K Write 2.1
4K Mixed 1
111% 1.5 MB/s
2TB free, PID 25a3
Operating at USB 2.1 Speed
SusWrite @10s intervals: 0 0 36 39 42 41 MB/s
18.7% Very poor
Read 50.5
Write 36.8
Mixed 31.7
SusWrite 26.3
46% 36.3 MB/s
4K Read 1.7
4K Write 1.7
4K Mixed 1
98% 1.47 MB/s
1,766 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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