Average Bench: 22.3% (192nd of 639)

Based on 8,725 user benchmarks.  Device: VID 0781 PID 5591 Model: SanDisk Ultra USB 3.0
Poor: 11%Average: 22.3% Great: 32%

Very poor average bench

The SanDisk Ultra Flair USB 3.0 16GB averaged 77.6% 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 1.84MB/s

Good consistency

The range of scores (95th - 5th percentile) for the SanDisk Ultra Flair USB 3.0 16GB is 21.2%. 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 12.3MB/s
Avg. Sequential Write Speed 29MB/s
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Average Bench

(Based on 8,725 samples)
Min Avg Max
27.9 Read 87.8 153
13.8 Write 29 43.2
14.7 Mixed 31.5 57.9
6.5 SusWrite 12.3 15.4
43.8% 40.2 MB/s
Min Avg Max
3.2 4K Read 5.25 6.91
0.4 4K Write 1.84 2.7
0.9 4K Mixed 2.33 3.8
162% 3.14 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest USB (mainstream) averages a speed of 100%
10GB free, PID 5591
Operating at USB 3.0 Speed
SusWrite @10s intervals: 38 12 11 11 10 11 MB/s
Read 116
Write 31.4
Mixed 52.9
SusWrite 15.4
59% 53.9 MB/s
4K Read 5.1
4K Write 2.5
4K Mixed 3.7
230% 3.77 MB/s
14GB free, PID 5591
Operating at USB 3.0 Speed
SusWrite @10s intervals: 35 15 9.7 9.7 9.7 9.8 MB/s
Read 75.3
Write 24.4
Mixed 40.5
SusWrite 14.8
44% 38.8 MB/s
4K Read 5.4
4K Write 2.6
4K Mixed 2.2
183% 3.4 MB/s
14GB free, PID 5591
Operating at USB 2.1 Speed
SusWrite @10s intervals: 20 20 9.9 9 9.2 9.1 MB/s
Read 31.3
Write 19
Mixed 23.1
SusWrite 12.9
27% 21.6 MB/s
4K Read 5
4K Write 2.4
4K Mixed 3.4
216% 3.6 MB/s
14GB free, PID 5591
Operating at USB 2.1 Speed
SusWrite @10s intervals: 11 6.5 6.5 5.5 4.2 4.3 MB/s
Read 35.5
Write 18.5
Mixed 19
SusWrite 6.3
24% 19.8 MB/s
4K Read 5.9
4K Write 1.9
4K Mixed 1.6
141% 3.13 MB/s
14GB free, PID 5591
Operating at USB 2.1 Speed
SusWrite @10s intervals: 13 7.6 8.7 5.7 6.7 6.5 MB/s
Read 38
Write 18.4
Mixed 19.7
SusWrite 8.1
25% 21.1 MB/s
4K Read 5.1
4K Write 1.7
4K Mixed 1.5
128% 2.77 MB/s
7GB free, PID 5591
Operating at USB 2.1 Speed
SusWrite @10s intervals: 10 5.6 6 6.1 7 6.9 MB/s
Read 31.5
Write 19.2
Mixed 15.7
SusWrite 7
22% 18.4 MB/s
4K Read 3.7
4K Write 1.9
4K Mixed 1.5
129% 2.37 MB/s
13GB free, PID 5591
Operating at USB 2.1 Speed
SusWrite @10s intervals: 9 13 14 13 8.4 8.5 MB/s
Read 25.2
Write 12.3
Mixed 16.5
SusWrite 11
20% 16.2 MB/s
4K Read 2.6
4K Write 1.6
4K Mixed 1.1
102% 1.77 MB/s
11GB free, PID 5591
Operating at USB 2.1 Speed
SusWrite @10s intervals: 13 6.9 10 9.1 7.4 7.2 MB/s
Read 37
Write 14.7
Mixed 15
SusWrite 9
22% 18.9 MB/s
4K Read 3
4K Write 0.8
4K Mixed 1.5
89% 1.77 MB/s
8,725 MORE »

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USB Flash Drive Rankings (Price vs Performance) August 2021 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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 Frequently Asked Questions

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CPUGPUSSD
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Intel Core i5-11400F $260Nvidia RTX 3060-Ti $400Samsung 860 Evo 250GB $52
Intel Core i7-11700K $360Nvidia GTX 1660S (Super) $240Samsung 850 Evo 120GB $183
HDDRAMUSB
Seagate Barracuda 1TB (2016) $39Corsair Vengeance LPX DDR4 3200 C16 2x8GB $79SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $31Corsair Vengeance LPX DDR4 3000 C15 2x8GB $80SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $649SanDisk Ultra Fit 32GB $16
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