Average Bench: 22% (189th of 639)

Based on 227 user benchmarks.  Device: VID 125f PID db8a Model: ADATA USB Flash Drive
Poor: 9%Average: 22% Great: 43%

Very poor average bench

The Adata DashDrive UV128 USB 3.0 64GB averaged 77.9% 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 0.71MB/s
Avg. Sequential Mixed IO Speed 37.7MB/s

Above average consistency

The range of scores (95th - 5th percentile) for the Adata DashDrive UV128 USB 3.0 64GB is 33.7%. This is a relatively narrow range which indicates that the Adata DashDrive UV128 USB 3.0 64GB performs reasonably consistently under varying real world conditions.

Weaknesses

Avg. Sustained Write Speed 16.8MB/s
Avg. 4K Random Read Speed 4.46MB/s
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Average Bench

(Based on 227 samples)
Min Avg Max
27.7 Read 78.3 193
6.27 Write 33.9 90.5
6.56 Mixed 37.7 90.4
13.2 SusWrite 16.8 20.4
48.4% 41.7 MB/s
Min Avg Max
1.63 4K Read 4.46 7.5
0.02 4K Write 0.71 1.41
0.02 4K Mixed 0.58 1.17
60.5% 1.92 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest USB (mainstream) averages a speed of 100%
58GB free, PID db8a
Operating at USB 3.0 Speed
SusWrite @10s intervals: 29 14 21 23 12 MB/s
Read 98
Write 12
Mixed 65.2
SusWrite 20.4
55% 48.9 MB/s
4K Read 5.8
4K Write 1.3
4K Mixed 2.2
141% 3.1 MB/s
6GB free, PID db8a
Operating at USB 3.0 Speed
SusWrite @10s intervals: 14 13 14 13 13 12 MB/s
Read 112
Write 2.7
Mixed 9.3
SusWrite 13.2
28% 34.2 MB/s
4K Read 4.7
4K Write 0
4K Mixed 0
17% 1.57 MB/s
32GB free, PID db8a
Operating at USB 2.1 Speed
Read 37.3
Write 31.7
Mixed 17.7
35% 28.9 MB/s
4K Read 5.05
4K Write 1.12
4K Mixed 0.88
87% 2.35 MB/s
47GB free, PID db8a
Operating at USB 3.0 Speed
Read 92
Write 8.19
Mixed 17.4
34% 39.2 MB/s
4K Read 4.03
4K Write 0.006
4K Mixed 0.23
23% 1.42 MB/s
32GB free, PID db8a
Operating at USB 2.1 Speed
Read 32.3
Write 25.2
Mixed 28.8
36% 28.8 MB/s
4K Read 5.05
4K Write 1.05
4K Mixed 0.83
83% 2.31 MB/s
23GB free, PID db8a
Operating at USB 3.0 Speed
Read 11.8
Write 30.1
Mixed 40.4
40% 27.4 MB/s
4K Read 4.94
4K Write 1.36
4K Mixed 0.91
96% 2.4 MB/s
38GB free, PID db8a
Operating at USB 2.1 Speed
Read 32.3
Write 28.1
Mixed 19.5
33% 26.6 MB/s
4K Read 2.25
4K Write 0.58
4K Mixed 0.45
43% 1.09 MB/s
20GB free, PID db8a
Operating at USB 2.1 Speed
Read 37.2
Write 8.41
Mixed 6.91
16% 17.5 MB/s
4K Read 3.07
4K Write 0.55
4K Mixed 0.51
47% 1.37 MB/s
227 MORE »

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USB Flash Drive Rankings (Price vs Performance) July 2018 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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Group Test Results

  • Best user rated - User sentiment trumps benchmarks for this comparison.
  • Fastest real world speed - Real World Speed measures performance for typical flash usage patterns.
  • Best value for money - Value for money is based on real world performance, price and capacity.
  • Raw speed comparison - Raw speed readings.

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639 Drives (Compared) Thousands of user benchmarks compiled into one comparison list.

See how consistently different USBs perform with varying real world conditions. The charts also illustrate overall performance, popularity and rank.

 Frequently Asked Questions

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