TEST
YOUR USB

WD (ExtHD)

Elements 25A3 10TB

▲ 500 ▼

Release date ≈ Q4 2018.

Average Bench: 70.5% (7th of 639)

Based on 3,723 user benchmarks.  Device: VID 1058 PID 25a3 Model: WD Elements 25A3
Poor: 27%Average: 70.5% Great: 95%

Good average bench

The WD Elements 25A3 10TB averaged 29.4% 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 6.2MB/s
Avg. 4K-64Thread Write Speed 5.62MB/s

Poor consistency

The range of scores (95th - 5th percentile) for the WD Elements 25A3 10TB is 67.9%. This is a particularly wide range which indicates that the WD Elements 25A3 10TB performs inconsistently under varying real world conditions.

Weaknesses

Avg. 4K-64Thread Read Speed 0.5MB/s
Avg. 4K Random Read Speed 2.16MB/s
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Average Bench

(Based on 3,723 samples)
Rank 770.5%
Min Avg Max
38.1 Read 143 200
36 Write 149 208
31.6 Mixed 100 132
23.9 SusWrite 139 205
180% 133 MB/s
Min Avg Max
0.9 4K Read 2.16 3.7
4.57 4K Write 6.2 10
0.8 4K Mixed 1.22 1.6
260% 3.19 MB/s
Min Avg Max
0.4 DQ Read 0.5 0.62
5.1 DQ Write 5.62 6.42
1 DQ Mixed 1.32 1.6
238% 2.48 MB/s
User Benchmarks BenchSequentialRandom 4kDeep queue 4k
The fastest USB (mainstream) averages a speed of 100%
8TB free, PID 25a3
Operating at USB 3.1 Speed
SusWrite @10s intervals: 192 191 202 200 197 193 MB/s
98.2% Outstanding
Read 183
Write 197
Mixed 129
SusWrite 196
240% 176 MB/s
4K Read 3.5
4K Write 9.2
4K Mixed 0.8
353% 4.5 MB/s
DQ Read 0.4
DQ Write 5.7
DQ Mixed 1
229% 2.37 MB/s
2.5TB free, PID 25a3
Operating at USB 3.1 Speed
SusWrite @10s intervals: 179 171 173 172 178 169 MB/s
84.2% Excellent
Read 173
Write 184
Mixed 129
SusWrite 174
224% 165 MB/s
4K Read 4.2
4K Write 6.6
4K Mixed 1.2
281% 4 MB/s
6TB free, PID 25a3
Operating at USB 3.1 Speed
SusWrite @10s intervals: 184 181 187 185 184 183 MB/s
83.6% Excellent
Read 172
Write 191
Mixed 120
SusWrite 184
228% 167 MB/s
4K Read 1.8
4K Write 5.9
4K Mixed 1.7
265% 3.13 MB/s
9TB free, PID 25a3
Operating at USB 3.1 Speed
SusWrite @10s intervals: 184 171 174 179 176 176 MB/s
80.7% Excellent
Read 184
Write 198
Mixed 115
SusWrite 177
228% 169 MB/s
4K Read 1.8
4K Write 4.9
4K Mixed 1.3
218% 2.67 MB/s
5TB free, PID 25a3
Operating at USB 3.1 Speed
SusWrite @10s intervals: 178 170 174 168 172 174 MB/s
78.2% Very good
Read 149
Write 176
Mixed 112
SusWrite 173
210% 152 MB/s
4K Read 1.9
4K Write 6
4K Mixed 1.5
262% 3.13 MB/s
3TB free, PID 25a3
Operating at USB 3.1 Speed
SusWrite @10s intervals: 148 145 148 147 149 149 MB/s
69.1% Good
Read 148
Write 159
Mixed 92.9
SusWrite 148
185% 137 MB/s
4K Read 1.7
4K Write 4.9
4K Mixed 1.3
217% 2.63 MB/s
3,723 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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