Average Bench: 26.7% (136th of 639)

Based on 4,799 user benchmarks.  Device: VID 0781 PID 5591 Model: SanDisk Ultra USB 3.0
Poor: 11%Average: 26.7% Great: 40%

Very poor average bench

The SanDisk Ultra Flair USB 3.0 32GB averaged 73.2% 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 2.51MB/s
Avg. 4K Random Write Speed 2.38MB/s

Good consistency

The range of scores (95th - 5th percentile) for the SanDisk Ultra Flair USB 3.0 32GB is 28.6%. This is a relatively narrow range which indicates that the SanDisk Ultra Flair USB 3.0 32GB performs reasonably consistently under varying real world conditions.

Weaknesses

Avg. Sustained Write Speed 24.9MB/s
Avg. 4K Random Read Speed 5.18MB/s
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Average Bench

(Based on 4,799 samples)
Min Avg Max
24.5 Read 87.8 161
13.2 Write 42.4 98.8
16.7 Mixed 49.3 108
13.3 SusWrite 24.9 37.6
61.4% 51.1 MB/s
Min Avg Max
2.7 4K Read 5.18 7
0.5 4K Write 2.38 3.8
0.9 4K Mixed 2.51 4.4
186% 3.36 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest USB (mainstream) averages a speed of 100%
16GB free, PID 5591
Operating at USB 3.0 Speed
SusWrite @10s intervals: 59 62 29 24 24 24 MB/s
Read 160
Write 54.5
Mixed 65.4
SusWrite 37
90% 79.2 MB/s
4K Read 6.7
4K Write 2.1
4K Mixed 1.7
154% 3.5 MB/s
25GB free, PID 5591
Operating at USB 2.1 Speed
SusWrite @10s intervals: 25 25 26 26 13 13 MB/s
Read 37.7
Write 25.8
Mixed 29.7
SusWrite 21.4
37% 28.6 MB/s
4K Read 5.5
4K Write 3.2
4K Mixed 3.8
258% 4.17 MB/s
24GB free, PID 5591
Operating at USB 2.1 Speed
SusWrite @10s intervals: 19 19 19 19 19 12 MB/s
Read 27.5
Write 18.5
Mixed 21.3
SusWrite 18
28% 21.3 MB/s
4K Read 3.3
4K Write 2.6
4K Mixed 2.5
186% 2.8 MB/s
29GB free, PID 5591
Operating at USB 2.1 Speed
SusWrite @10s intervals: 21 17 16 16 16 17 MB/s
Read 35.3
Write 19
Mixed 23.8
SusWrite 17.4
30% 23.9 MB/s
4K Read 5.3
4K Write 2
4K Mixed 1.4
135% 2.9 MB/s
29GB free, PID 5591
Operating at USB 2.1 Speed
SusWrite @10s intervals: 22 19 18 18 18 18 MB/s
Read 35.5
Write 20.7
Mixed 23.3
SusWrite 18.6
31% 24.5 MB/s
4K Read 5.2
4K Write 0.9
4K Mixed 1.6
104% 2.57 MB/s
4,799 MORE »

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USB Flash Drive Rankings (Price vs Performance) September 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 $140Nvidia GTX 1660 $220Samsung 850 Evo 250GB $80
Intel Core i5-9600K $219Nvidia GTX 1660-Ti $278Samsung 850 Evo 500GB $105
AMD Ryzen 5 3600 $195Nvidia RTX 2060 $340Samsung 850 Pro 256GB $215
HDDRAMUSB
Seagate Barracuda 1TB (2016) $42Corsair Vengeance LPX DDR4 3000 C15 2x8GB $70SanDisk Extreme 64GB $88
WD Blue 1TB (2012) $34G.SKILL Trident Z DDR4 3200 C14 4x16GB $630SanDisk Extreme 32GB $48
Seagate Barracuda 3TB (2016) $80Corsair Vengeance LPX DDR4 3200 C16 2x8GB $66SanDisk Extreme 16GB $24
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