Average Bench: 21.2% (197th of 639)

Based on 323 user benchmarks.  Device: VID 125f PID db8a Model: ADATA USB Flash Drive
Poor: 9%Average: 21.2% Great: 41%

Very poor average bench

The Adata DashDrive UV128 USB 3.0 64GB averaged 78.7% 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 Mixed IO Speed 0.73MB/s
Avg. 4K Random Write Speed 0.72MB/s

Above average consistency

The range of scores (95th - 5th percentile) for the Adata DashDrive UV128 USB 3.0 64GB is 32.3%. 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 27.3MB/s
Avg. 4K Random Read Speed 4.4MB/s
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Average Bench

(Based on 323 samples)
Min Avg Max
27.1 Read 75.9 148
4.76 Write 31.4 88.7
6.48 Mixed 36.2 87.2
9.38 SusWrite 27.3 63.3
50.7% 42.7 MB/s
Min Avg Max
1.91 4K Read 4.4 7.38
0.01 4K Write 0.72 1.42
0.001 4K Mixed 0.73 2.08
65.6% 1.95 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest USB (mainstream) averages a speed of 100%
25GB free, PID db8a
Operating at USB 3.2 Speed
SusWrite @10s intervals: 4.4 16 16 16 16 16 MB/s
Read 107
Write 3
Mixed 17
SusWrite 14.2
31% 35.4 MB/s
4K Read 5.2
4K Write 0.7
4K Mixed 1.3
87% 2.4 MB/s
25GB free, PID db8a
Operating at USB 3.2 Speed
SusWrite @10s intervals: 11 16 16 16 16 16 MB/s
Read 104
Write 16
Mixed 24.5
SusWrite 15.3
40% 40 MB/s
4K Read 4.5
4K Write 0.7
4K Mixed 1.3
85% 2.17 MB/s
25GB free, PID db8a
Operating at USB 3.2 Speed
SusWrite @10s intervals: 14 16 16 16 16 16 MB/s
Read 97.4
Write 16.3
Mixed 22.1
SusWrite 15.6
38% 37.9 MB/s
4K Read 4.5
4K Write 0.8
4K Mixed 1.3
88% 2.2 MB/s
58GB free, PID db8a
Operating at USB 2.1 Speed
SusWrite @10s intervals: 23 24 24 9.6 19 MB/s
Read 25.2
Write 22.9
Mixed 23.1
SusWrite 19.1
30% 22.6 MB/s
4K Read 2.7
4K Write 1
4K Mixed 1.5
95% 1.73 MB/s
28GB free, PID db8a
Operating at USB 2.1 Speed
SusWrite @10s intervals: 20 17 19 16 18 18 MB/s
Read 23.3
Write 20.3
Mixed 9.7
SusWrite 18
23% 17.8 MB/s
4K Read 0.6
4K Write 0.9
4K Mixed 1.4
80% 0.97 MB/s
25GB free, PID db8a
Operating at USB 2.1 Speed
SusWrite @10s intervals: 1 8.9 16 16 16 16 MB/s
Read 36.5
Write 9
Mixed 17.7
SusWrite 12.3
22% 18.9 MB/s
4K Read 3.5
4K Write 0.3
4K Mixed 1.1
61% 1.63 MB/s
323 MORE »

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

  • Best user rated - User sentiment trumps benchmarks for this comparison.
  • Best value for money - Value for money is based on real world performance.
  • Fastest real world speed - Real World Speed measures performance for typical consumers.

 Comments

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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Intel Core i5-8600K $260Nvidia GTX 1080-Ti $808Samsung 850 Pro 256GB $97
HDDRAMUSB
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WD Blue 1TB (2012) $45Corsair Vengeance LPX DDR4 3200 C16 2x8GB $110SanDisk Ultra Fit 32GB $12
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