Average Bench: 21.9% (189th of 639)

Based on 2,971 user benchmarks.  Device: VID 0781 PID 5591 Model: SanDisk Ultra USB 3.0
Poor: 11%Average: 21.9% Great: 31%

Very poor average bench

The SanDisk Ultra Flair USB 3.0 16GB averaged 78.0% 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 2.64MB/s
Avg. 4K Random Write Speed 1.98MB/s

Good consistency

The range of scores (95th - 5th percentile) for the SanDisk Ultra Flair USB 3.0 16GB is 20.6%. 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 12.7MB/s
Avg. Sequential Write Speed 28.8MB/s
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Average Bench

(Based on 2,971 samples)
Min Avg Max
27.1 Read 82 149
12.8 Write 28.8 42.5
15.2 Mixed 33.6 56.6
6.8 SusWrite 12.7 15.4
43.7% 39.3 MB/s
Min Avg Max
3.1 4K Read 5.08 6.8
0.6 4K Write 1.98 2.7
1 4K Mixed 2.64 3.8
176% 3.24 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: 17 16 9.6 7.2 7 7.4 MB/s
Read 96.5
Write 16.3
Mixed 24
SusWrite 10.8
36% 36.9 MB/s
4K Read 5.3
4K Write 1.6
4K Mixed 2.5
159% 3.13 MB/s
14GB free, PID 5591
Operating at USB 2.1 Speed
SusWrite @10s intervals: 21 19 9.7 9 9.2 9 MB/s
Read 34.3
Write 16.5
Mixed 22.2
SusWrite 12.9
26% 21.5 MB/s
4K Read 4.9
4K Write 2.7
4K Mixed 3.7
236% 3.77 MB/s
10GB free, PID 5591
Operating at USB 2.1 Speed
SusWrite @10s intervals: 12 7.4 6.4 4.1 3.9 4.1 MB/s
Read 39
Write 22.7
Mixed 17.3
SusWrite 6.3
25% 21.3 MB/s
4K Read 5.8
4K Write 2.2
4K Mixed 1.7
154% 3.23 MB/s
14GB free, PID 5591
Operating at USB 2.1 Speed
SusWrite @10s intervals: 14 12 14 5.4 8.2 8.2 MB/s
Read 31.7
Write 16.7
Mixed 19.7
SusWrite 10.2
24% 19.6 MB/s
4K Read 3.9
4K Write 2.3
4K Mixed 3.1
198% 3.1 MB/s
14GB free, PID 5591
Operating at USB 2.1 Speed
SusWrite @10s intervals: 19 19 10 8.8 8.9 8.8 MB/s
Read 28.2
Write 18.8
Mixed 19.3
SusWrite 12.4
25% 19.7 MB/s
4K Read 3.5
4K Write 2.2
4K Mixed 2.9
186% 2.87 MB/s
6GB free, PID 5591
Operating at USB 2.1 Speed
SusWrite @10s intervals: 18 17 12 9.1 8.9 8.9 MB/s
Read 23.5
Write 16
Mixed 17.3
SusWrite 12.1
22% 17.2 MB/s
4K Read 3.5
4K Write 2.1
4K Mixed 2.9
183% 2.83 MB/s
2,971 MORE »

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USB Flash Drive Rankings (Price vs Performance) May 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 i7-8700K $345Nvidia GTX 1070 $380Samsung 850 Evo 250GB $92
AMD Ryzen 5 2600 $145Nvidia GTX 1060-6GB $208Samsung 850 Evo 500GB $99
AMD Ryzen 5 1600 $112Nvidia GTX 1080-Ti $808Samsung 850 Pro 256GB $163
HDDRAMUSB
Seagate Barracuda 1TB (2016) $44Corsair Vengeance LPX DDR4 3000 C15 2x8GB $80SanDisk Extreme 64GB $128
WD Blue 1TB (2012) $40G.SKILL Trident Z DDR4 3200 C14 4x16GB $651SanDisk Extreme 32GB $48
Seagate Barracuda 3TB (2016) $73Corsair Vengeance LPX DDR4 3200 C16 2x8GB $85SanDisk Ultra Fit 32GB $12
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