Average Bench: 22.8% (183rd of 639)

Based on 4,935 user benchmarks.  Device: VID 0781 PID 5591 Model: SanDisk Ultra USB 3.0
Poor: 11%Average: 22.8% 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 2.53MB/s
Avg. 4K Random Write Speed 1.94MB/s

Good consistency

The range of scores (95th - 5th percentile) for the SanDisk Ultra Flair USB 3.0 16GB is 20.3%. 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 12.9MB/s
Avg. Sequential Write Speed 30MB/s
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Average Bench

(Based on 4,935 samples)
Min Avg Max
27.9 Read 88.2 153
13 Write 30 43.5
14.1 Mixed 32.9 58
7.09 SusWrite 12.9 15.4
45% 41 MB/s
Min Avg Max
3.2 4K Read 5.28 7.1
0.5 4K Write 1.94 2.8
0.9 4K Mixed 2.53 3.8
172% 3.25 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest USB (mainstream) averages a speed of 100%
5GB free, PID 5591
Operating at USB 3.0 Speed
SusWrite @10s intervals: 35 14 10 10 10 10 MB/s
Read 116
Write 34.3
Mixed 58.7
SusWrite 14.8
62% 56 MB/s
4K Read 5.3
4K Write 2.1
4K Mixed 3.6
214% 3.67 MB/s
10GB free, PID 5591
Operating at USB 3.0 Speed
SusWrite @10s intervals: 33 4.7 6.3 10 10 10 MB/s
Read 112
Write 40
Mixed 56.5
SusWrite 12.4
62% 55.3 MB/s
4K Read 5.6
4K Write 2.3
4K Mixed 3.6
221% 3.83 MB/s
6GB free, PID 5591
Operating at USB 3.0 Speed
SusWrite @10s intervals: 7.4 12 13 13 13 13 MB/s
Read 110
Write 37
Mixed 36.5
SusWrite 12
52% 48.8 MB/s
4K Read 5
4K Write 2.1
4K Mixed 1.6
144% 2.9 MB/s
6GB free, PID 5591
Operating at USB 3.0 Speed
SusWrite @10s intervals: 16 12 13 13 13 13 MB/s
Read 92.8
Write 30.2
Mixed 43.5
SusWrite 13.3
50% 45 MB/s
4K Read 6.3
4K Write 1.4
4K Mixed 1.2
112% 2.97 MB/s
14GB free, PID 5591
Operating at USB 2.1 Speed
SusWrite @10s intervals: 14 8.6 7.8 4.9 7.1 6.1 MB/s
Read 37
Write 22
Mixed 19
SusWrite 8.1
26% 21.5 MB/s
4K Read 6.3
4K Write 1.7
4K Mixed 1.6
136% 3.2 MB/s
11GB free, PID 5591
Operating at USB 2.1 Speed
SusWrite @10s intervals: 5.9 5.1 4.1 4.6 4 4.6 MB/s
Read 38.3
Write 6.3
Mixed 9
SusWrite 4.7
14% 14.6 MB/s
4K Read 5.8
4K Write 0.5
4K Mixed 1
72% 2.43 MB/s
4,935 MORE »

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USB Flash Drive Rankings (Price vs Performance) November 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

 Best User Rated

The Best.
CPUGPUSSD
Intel Core i5-9400F $148Nvidia GTX 1660S (Super) $234Crucial MX500 250GB $45
Intel Core i5-9600K $210Nvidia GTX 1660 $210Samsung 850 Evo 120GB $150
Intel Core i7-9700K $340Nvidia GTX 1660-Ti $260Samsung 860 Evo 250GB $49
HDDRAMUSB
Seagate Barracuda 1TB (2016) $44Corsair Vengeance LPX DDR4 3000 C15 2x8GB $65SanDisk Extreme 64GB $88
WD Blue 1TB (2012) $40G.SKILL Trident Z DDR4 3200 C14 4x16GB $612SanDisk Extreme 32GB $48
Seagate Barracuda 3TB (2016) $75Corsair Vengeance LPX DDR4 3200 C16 2x8GB $80SanDisk Ultra Fit 32GB $14
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