Average Bench: 22.9% (186th of 639)

Based on 6,445 user benchmarks.  Device: VID 0781 PID 5591 Model: SanDisk Ultra USB 3.0
Poor: 11%Average: 22.9% Great: 32%

Very poor average bench

The SanDisk Ultra Flair USB 3.0 16GB averaged 77.1% 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 2.33MB/s
Avg. 4K Random Write Speed 1.81MB/s

Good consistency

The range of scores (95th - 5th percentile) for the SanDisk Ultra Flair USB 3.0 16GB is 21.1%. This is a relatively narrow range which indicates that the SanDisk Ultra Flair USB 3.0 16GB performs reasonably consistently under varying real world conditions.

Weaknesses

Avg. Sustained Write Speed 12.5MB/s
Avg. Sequential Write Speed 30.6MB/s
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Average Bench

(Based on 6,445 samples)
Min Avg Max
27.3 Read 91.8 154
12.9 Write 30.6 43.7
13.6 Mixed 31.1 56.9
6.6 SusWrite 12.5 15.4
45% 41.5 MB/s
Min Avg Max
3.34 4K Read 5.42 7.1
0.4 4K Write 1.81 2.7
1 4K Mixed 2.33 3.8
161% 3.19 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest USB (mainstream) averages a speed of 100%
14GB free, PID 5591
Operating at USB 3.0 Speed
SusWrite @10s intervals: 21 13 13 14 14 14 MB/s
Read 156
Write 44.5
Mixed 26.8
SusWrite 15.1
60% 60.7 MB/s
4K Read 6.9
4K Write 1.9
4K Mixed 1.8
152% 3.53 MB/s
12GB free, PID 5591
Operating at USB 3.0 Speed
SusWrite @10s intervals: 25 17 19 17 18 17 MB/s
Read 148
Write 49.3
Mixed 13.2
SusWrite 18.9
57% 57.4 MB/s
4K Read 5.9
4K Write 2
4K Mixed 1.8
151% 3.23 MB/s
10GB free, PID 5591
Operating at USB 3.0 Speed
SusWrite @10s intervals: 16 14 13 14 14 14 MB/s
Read 120
Write 40.5
Mixed 34
SusWrite 14.1
56% 52.3 MB/s
4K Read 6.7
4K Write 1.3
4K Mixed 1.6
124% 3.2 MB/s
11GB free, PID 5591
Operating at USB 2.1 Speed
SusWrite @10s intervals: 11 7.7 7 5.3 5.1 5.1 MB/s
Read 37.5
Write 20.5
Mixed 22
SusWrite 6.9
26% 21.7 MB/s
4K Read 7.7
4K Write 2.1
4K Mixed 1.7
158% 3.83 MB/s
4GB free, PID 5591
Operating at USB 2.1 Speed
SusWrite @10s intervals: 14 8.1 8.2 6 6.8 6.8 MB/s
Read 37.2
Write 20.3
Mixed 19
SusWrite 8.3
25% 21.2 MB/s
4K Read 6.9
4K Write 1.8
4K Mixed 1.4
134% 3.37 MB/s
11GB free, PID 5591
Operating at USB 2.1 Speed
SusWrite @10s intervals: 12 15 17 12 8.8 9 MB/s
Read 29.5
Write 19.5
Mixed 21
SusWrite 12.3
26% 20.6 MB/s
4K Read 4.6
4K Write 1.8
4K Mixed 1.3
122% 2.57 MB/s
10GB free, PID 5591
Operating at USB 2.1 Speed
SusWrite @10s intervals: 13 6.8 7.1 5.6 4.9 4.9 MB/s
Read 32.4
Write 18.3
Mixed 14.8
SusWrite 7.1
22% 18.1 MB/s
4K Read 5
4K Write 1.5
4K Mixed 1.5
121% 2.67 MB/s
6,445 MORE »

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USB Flash Drive Rankings (Price vs Performance) August 2020 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.
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  • Fastest real world speed - Real World Speed measures performance for typical consumers.

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 Frequently Asked Questions

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