Average Bench: 22.2% (188th of 639)

Based on 3,648 user benchmarks.  Device: VID 0781 PID 5591 Model: SanDisk Ultra USB 3.0
Poor: 11%Average: 22.2% Great: 31%

Very poor average bench

The SanDisk Ultra Flair USB 3.0 16GB averaged 77.7% 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 2.67MB/s
Avg. 4K Random Write Speed 2MB/s

Very good consistency

The range of scores (95th - 5th percentile) for the SanDisk Ultra Flair USB 3.0 16GB is just 19.8%. 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 13.1MB/s
Avg. Sequential Write Speed 29.3MB/s
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Average Bench

(Based on 3,648 samples)
Min Avg Max
27.1 Read 82.9 150
13.9 Write 29.3 42.7
15.2 Mixed 33.4 57.1
6.6 SusWrite 13.1 15.4
44.2% 39.7 MB/s
Min Avg Max
2.93 4K Read 5.02 6.87
0.6 4K Write 2 2.7
1 4K Mixed 2.67 3.8
177% 3.23 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: 20 18 17 17 17 17 MB/s
Read 153
Write 45
Mixed 25
SusWrite 17.6
60% 60.2 MB/s
4K Read 6.8
4K Write 1.7
4K Mixed 1.7
141% 3.4 MB/s
10GB free, PID 5591
Operating at USB 3.0 Speed
SusWrite @10s intervals: 17 13 13 13 13 13 MB/s
Read 150
Write 39.8
Mixed 24
SusWrite 13.4
56% 56.8 MB/s
4K Read 6.5
4K Write 1.9
4K Mixed 1.7
147% 3.37 MB/s
13GB free, PID 5591
Operating at USB 3.0 Speed
SusWrite @10s intervals: 38 13 11 10 10 10 MB/s
Read 128
Write 34.7
Mixed 58.5
SusWrite 15.4
65% 59.3 MB/s
4K Read 5.2
4K Write 2.7
4K Mixed 3.8
240% 3.9 MB/s
14GB free, PID 5591
Operating at USB 3.0 Speed
SusWrite @10s intervals: 13 12 13 13 14 12 MB/s
Read 143
Write 33.3
Mixed 40.3
SusWrite 12.9
58% 57.5 MB/s
4K Read 6.5
4K Write 1.9
4K Mixed 1.7
147% 3.37 MB/s
13GB free, PID 5591
Operating at USB 3.0 Speed
SusWrite @10s intervals: 18 13 13 14 13 13 MB/s
Read 102
Write 33
Mixed 50.5
SusWrite 14.1
56% 49.9 MB/s
4K Read 6.3
4K Write 1.4
4K Mixed 1.8
132% 3.17 MB/s
4GB free, PID 5591
Operating at USB 2.1 Speed
SusWrite @10s intervals: 21 16 4.8 9.2 9.1 9.3 MB/s
Read 36.8
Write 21.2
Mixed 23.5
SusWrite 11.7
29% 23.3 MB/s
4K Read 5
4K Write 2.6
4K Mixed 3.5
226% 3.7 MB/s
8GB free, PID 5591
Operating at USB 2.1 Speed
SusWrite @10s intervals: 20 17 12 8.6 9.4 9.1 MB/s
Read 32.5
Write 20.1
Mixed 23.9
SusWrite 12.8
28% 22.3 MB/s
4K Read 4.8
4K Write 2.5
4K Mixed 3.7
229% 3.67 MB/s
3,648 MORE »

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USB Flash Drive Rankings (Price vs Performance) July 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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  • 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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The Best.
CPUGPUSSD
Intel Core i7-8700K $350Nvidia GTX 1070 $400Samsung 850 Evo 250GB $104
AMD Ryzen 5 2600 $127Nvidia GTX 1060-6GB $250Samsung 850 Evo 500GB $103
AMD Ryzen 7 2700X $248Nvidia GTX 1080-Ti $808Samsung 850 Pro 256GB $97
HDDRAMUSB
Seagate Barracuda 1TB (2016) $40Corsair Vengeance LPX DDR4 3000 C15 2x8GB $68SanDisk Extreme 64GB $45
Seagate Barracuda 3TB (2016) $70G.SKILL Trident Z DDR4 3200 C14 4x16GB $606SanDisk Extreme 32GB $48
WD Blue 1TB (2012) $37Corsair Vengeance LPX DDR4 3200 C16 2x8GB $78SanDisk Ultra Fit 32GB $12
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