TEST
YOUR USB

WD (ExtHD)

Elements 25A3 20TB

▲ 500 ▼

Release date ≈ Q3 2022.

Average Bench: 94.5% (5th of 639)

Based on 96 user benchmarks.  Device: VID 1058 PID 25a3 Model: WD Elements 25A3
Poor: 38%Average: 94.5% Great: 118%

Excellent average bench

The WD Elements 25A3 20TB averaged just 5.4% lower than the peak scores attained by the group leaders. This is an excellent result which ranks the WD Elements 25A3 20TB near the top of the comparison list.

Strengths

Avg. 4K-64Thread Write Speed 11.1MB/s
Avg. 4K Random Write Speed 10.1MB/s

Very poor consistency

The range of scores (95th - 5th percentile) for the WD Elements 25A3 20TB is 79.4%. This is a particularly wide range which indicates that the WD Elements 25A3 20TB performs inconsistently under varying real world conditions.

Weaknesses

Avg. 4K-64Thread Read Speed 1.57MB/s
Avg. 4K Random Read Speed 2.34MB/s
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Average Bench

(Based on 96 samples)
Rank 594.5%
Min Avg Max
49.7 Read 180 231
35.6 Write 175 232
30 Mixed 134 168
39.6 SusWrite 169 232
222% 165 MB/s
Min Avg Max
0.8 4K Read 2.34 4.49
6.15 4K Write 10.1 11.8
1.2 4K Mixed 1.68 2.2
409% 4.7 MB/s
Min Avg Max
0.6 DQ Read 1.57 2.25
10.4 DQ Write 11.1 11.9
1.4 DQ Mixed 1.73 2.1
443% 4.8 MB/s
User Benchmarks BenchSequentialRandom 4kDeep queue 4k
The fastest USB (mainstream) averages a speed of 100%
14TB free, PID 25a3
Operating at USB 3.1 Speed
SusWrite @10s intervals: 209 220 222 217 221 220 MB/s
112% Outstanding
Read 217
Write 217
Mixed 159
SusWrite 218
275% 203 MB/s
4K Read 1.6
4K Write 10.5
4K Mixed 1.5
414% 4.53 MB/s
DQ Read 0.7
DQ Write 11.4
DQ Mixed 1.6
445% 4.57 MB/s
8.5TB free, PID 25a3
Operating at USB 3.1 Speed
SusWrite @10s intervals: 178 180 177 177 179 174 MB/s
98% Outstanding
Read 175
Write 170
Mixed 150
SusWrite 178
229% 168 MB/s
4K Read 0.9
4K Write 11
4K Mixed 1.4
425% 4.43 MB/s
DQ Read 0.7
DQ Write 11
DQ Mixed 1.5
428% 4.4 MB/s
6TB free, PID 25a3
Operating at USB 3.1 Speed
SusWrite @10s intervals: 172 169 172 169 168 171 MB/s
94.6% Outstanding
Read 144
Write 161
Mixed 138
SusWrite 170
213% 153 MB/s
4K Read 1.5
4K Write 11.8
4K Mixed 1.4
455% 4.9 MB/s
DQ Read 1.4
DQ Write 11.3
DQ Mixed 1.7
447% 4.8 MB/s
30GB free, PID 25a3
Operating at USB 3.1 Speed
SusWrite @10s intervals: 120 119 106 111 94 132 MB/s
72% Very good
Read 122
Write 122
Mixed 110
SusWrite 114
159% 117 MB/s
4K Read 1.6
4K Write 9.5
4K Mixed 1.5
380% 4.2 MB/s
DQ Read 1.1
DQ Write 8.1
DQ Mixed 1.2
320% 3.47 MB/s
96 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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