TEST
YOUR USB

WD (ExtHD)

Elements 25A3 6TB

▲ 501 ▼

Release date ≈ Q4 2017.

Average Bench: 76.7% (6th of 639)

Based on 4,829 user benchmarks.  Device: VID 1058 PID 25a3 Model: WD Elements 25A3
Poor: 28%Average: 76.7% Great: 107%

Good average bench

The WD Elements 25A3 6TB averaged 23.3% lower than the peak scores attained by the group leaders. This is an excellent result which ranks the WD Elements 25A3 6TB near the top of the comparison list.

Strengths

Avg. 4K-64Thread Write Speed 10.5MB/s
Avg. 4K Random Write Speed 9.2MB/s

Very poor consistency

The range of scores (95th - 5th percentile) for the WD Elements 25A3 6TB is 78.7%. This is a particularly wide range which indicates that the WD Elements 25A3 6TB performs inconsistently under varying real world conditions.

Weaknesses

Avg. 4K-64Thread Read Speed 0.56MB/s
Avg. 4K-64Thread Mixed IO Speed 0.86MB/s
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Average Bench

(Based on 4,829 samples)
Rank 676.7%
Min Avg Max
32.7 Read 136 196
27.9 Write 124 176
26.6 Mixed 87.1 124
22.5 SusWrite 121 177
156% 117 MB/s
Min Avg Max
0.9 4K Read 9.73 22.1
2.5 4K Write 9.2 12.3
0.6 4K Mixed 0.96 1.2
381% 6.63 MB/s
Min Avg Max
0.4 DQ Read 0.56 0.7
8.5 DQ Write 10.5 12.1
0.5 DQ Mixed 0.86 1.2
389% 3.98 MB/s
User Benchmarks BenchSequentialRandom 4kDeep queue 4k
The fastest USB (mainstream) averages a speed of 100%
3.5TB free, PID 25a3
Operating at USB 3.1 Speed
SusWrite @10s intervals: 161 161 161 161 160 161 MB/s
103% Outstanding
Read 179
Write 163
Mixed 109
SusWrite 161
204% 153 MB/s
4K Read 21.3
4K Write 12.1
4K Mixed 1.1
528% 11.5 MB/s
DQ Read 0.7
DQ Write 10
DQ Mixed 1
377% 3.9 MB/s
5TB free, PID 25a3
Operating at USB 3.1 Speed
SusWrite @10s intervals: 174 174 175 175 173 174 MB/s
103% Outstanding
Read 176
Write 174
Mixed 104
SusWrite 174
211% 157 MB/s
4K Read 7
4K Write 12.3
4K Mixed 1.1
482% 6.8 MB/s
DQ Read 0.6
DQ Write 10.1
DQ Mixed 1.1
383% 3.93 MB/s
3TB free, PID 25a3
Operating at USB 3.1 Speed
SusWrite @10s intervals: 150 149 149 149 148 149 MB/s
98.8% Outstanding
Read 166
Write 148
Mixed 111
SusWrite 149
192% 144 MB/s
4K Read 18.5
4K Write 12.3
4K Mixed 1.1
524% 10.6 MB/s
DQ Read 0.7
DQ Write 10.5
DQ Mixed 0.9
390% 4.03 MB/s
3TB free, PID 25a3
Operating at USB 3.1 Speed
SusWrite @10s intervals: 142 148 144 147 146 148 MB/s
94.2% Outstanding
Read 165
Write 147
Mixed 113
SusWrite 146
190% 142 MB/s
4K Read 8.4
4K Write 11.9
4K Mixed 1.1
473% 7.13 MB/s
DQ Read 0.6
DQ Write 11.3
DQ Mixed 0.9
417% 4.27 MB/s
866GB free, PID 25a3
Operating at USB 3.0 Speed
SusWrite @10s intervals: 102 104 103 103 103 104 MB/s
79.6% Very good
Read 124
Write 106
Mixed 88.4
SusWrite 103
140% 105 MB/s
4K Read 14.9
4K Write 11.6
4K Mixed 1.1
487% 9.2 MB/s
DQ Read 0.6
DQ Write 8.6
DQ Mixed 1
329% 3.4 MB/s
4,829 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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