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%
360GB free, PID 25a2
Operating at USB 3.1 Speed
SusWrite @10s intervals: 104 101 102 102 99 105 MB/s
56.9% Above average
Read 142
Write 116
Mixed 89
SusWrite 102
147% 112 MB/s
4K Read 2.1
4K Write 4.4
4K Mixed 0.4
171% 2.3 MB/s
19GB free, PID 25a2
Operating at USB 3.0 Speed
SusWrite @10s intervals: 93 94 94 95 95 98 MB/s
48.4% Average
Read 92.1
Write 72.9
Mixed 60.3
SusWrite 94.7
107% 80 MB/s
4K Read 1
4K Write 4.6
4K Mixed 0.3
170% 1.97 MB/s
340GB free, PID 25a2
Operating at USB 3.1 Speed
SusWrite @10s intervals: 77 80 80 80 80 80 MB/s
39.1% Below average
Read 60.3
Write 66.1
Mixed 48.5
SusWrite 79.6
88% 63.6 MB/s
4K Read 0.6
4K Write 4.2
4K Mixed 0.3
155% 1.7 MB/s
26GB free, PID 25a2
Operating at USB 2.1 Speed
SusWrite @10s intervals: 38 39 40 41 41 41 MB/s
20.1% Poor
Read 50
Write 39.2
Mixed 27.6
SusWrite 40
51% 39.2 MB/s
4K Read 0.7
4K Write 1.3
4K Mixed 0.8
74% 0.93 MB/s
572GB free, PID 25a2
Operating at USB 2.1 Speed
SusWrite @10s intervals: 32 33 33 33 33 34 MB/s
18.9% Very poor
Read 53.7
Write 32.6
Mixed 28.9
SusWrite 32.9
47% 37 MB/s
4K Read 1
4K Write 1.2
4K Mixed 0.9
75% 1.03 MB/s
667GB free, PID 25a2
Operating at USB 2.1 Speed
SusWrite @10s intervals: 28 21 29 33 30 30 MB/s
11% Very poor
Read 23.8
Write 25.2
Mixed 21.9
SusWrite 28.4
34% 24.8 MB/s
4K Read 0.6
4K Write 0.4
4K Mixed 0.4
29% 0.47 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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