Average Bench: 44.4% (31st of 639)

Based on 2,492 user benchmarks.  Device: VID 1058 PID 25a1 Model: WD Elements 25A1
Poor: 18%Average: 44.4% Great: 64%

Below average average bench

The WD Elements 25A1 4TB averaged 55.5% 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 10.3MB/s
Avg. 4K Random Write Speed 4.91MB/s

Average consistency

The range of scores (95th - 5th percentile) for the WD Elements 25A1 4TB is 46.3%. This is a relatively wide range which indicates that the WD Elements 25A1 4TB performs inconsistently under varying real world conditions.

Weaknesses

Avg. 4K-64Thread Read Speed 0.39MB/s
Avg. 4K Random Read Speed 1.07MB/s
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Average Bench

(Based on 2,492 samples)
Min Avg Max
28.6 Read 84.4 124
24.3 Write 77.4 107
22.5 Mixed 56.3 76.5
24.1 SusWrite 77.3 110
98.8% 73.9 MB/s
Min Avg Max
0.42 4K Read 1.07 1.5
0.9 4K Write 4.91 8.1
0.2 4K Mixed 0.71 0.9
195% 2.23 MB/s
Min Avg Max
0.3 DQ Read 0.39 0.44
7.78 DQ Write 10.3 11.4
0.4 DQ Mixed 0.56 0.7
370% 3.74 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest USB (mainstream) averages a speed of 100%
2TB free, PID 25a1
Operating at USB 3.1 Speed
SusWrite @10s intervals: 92 91 92 91 91 92 MB/s
Read 145
Write 93.3
Mixed 74.4
SusWrite 91.3
128% 101 MB/s
4K Read 1.2
4K Write 9.3
4K Mixed 0.8
348% 3.77 MB/s
DQ Read 0.4
DQ Write 10.6
DQ Mixed 0.6
382% 3.87 MB/s
2TB free, PID 25a1
Operating at USB 3.1 Speed
SusWrite @10s intervals: 109 110 109 110 109 109 MB/s
Read 124
Write 105
Mixed 72.4
SusWrite 109
136% 103 MB/s
4K Read 1.1
4K Write 8.1
4K Mixed 0.7
303% 3.3 MB/s
DQ Read 0.4
DQ Write 10.7
DQ Mixed 0.5
382% 3.87 MB/s
2.5TB free, PID 25a1
Operating at USB 3.1 Speed
SusWrite @10s intervals: 101 98 97 96 97 95 MB/s
Read 106
Write 100
Mixed 69.2
SusWrite 97.5
125% 93.1 MB/s
4K Read 1
4K Write 4.9
4K Mixed 0.8
198% 2.23 MB/s
2TB free, PID 25a1
Operating at USB 3.1 Speed
SusWrite @10s intervals: 61 63 63 64 64 64 MB/s
Read 114
Write 97.5
Mixed 82.2
SusWrite 63.1
116% 89.1 MB/s
4K Read 1.1
4K Write 6.1
4K Mixed 0.8
239% 2.67 MB/s
1TB free, PID 25a1
Operating at USB 3.1 Speed
SusWrite @10s intervals: 86 87 87 87 87 87 MB/s
Read 110
Write 98.5
Mixed 72.2
SusWrite 87.1
122% 91.8 MB/s
4K Read 1.4
4K Write 4.2
4K Mixed 0.8
175% 2.13 MB/s
193GB free, PID 25a1
Operating at USB 3.1 Speed
SusWrite @10s intervals: 56 56 55 56 56 56 MB/s
Read 69.7
Write 57.5
Mixed 47.8
SusWrite 55.8
76% 57.7 MB/s
4K Read 0.8
4K Write 4
4K Mixed 0.6
159% 1.8 MB/s
322GB free, PID 25a1
Operating at USB 2.1 Speed
SusWrite @10s intervals: 26 26 26 26 26 26 MB/s
Read 30.3
Write 25.8
Mixed 23.5
SusWrite 26.1
35% 26.4 MB/s
4K Read 1.5
4K Write 4.3
4K Mixed 0.9
182% 2.23 MB/s
2,492 MORE »
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USB Flash Drive Rankings (Price vs Performance) December 2019 USB Rankings.

We highlight the best USB flash drive in terms of balanced performance and value for money using current prices, sequential read, sequential write , 4k read and 4k write speed. The speeds are combined to form a single effective speed which measures performance for tasks such as copying photos, music and videos. Effective speed is adjusted by current price and capacity to yield value for money. Finally thousands of individual user ratings are used to validate our benchmark figures. [USBFlashPro]

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Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $613SanDisk Extreme 16GB $24
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