Average Bench: 26.7% (135th of 639)

Based on 14,820 user benchmarks.  Device: VID 0781 PID 5581 Models: SanDisk SanDisk Ultra, SanDisk Ultra
Poor: 11%Average: 26.7% Great: 39%

Very poor average bench

The SanDisk Ultra USB 3.0 64GB averaged 73.3% 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 1.93MB/s
Avg. 4K Random Write Speed 1.62MB/s

Good consistency

The range of scores (95th - 5th percentile) for the SanDisk Ultra USB 3.0 64GB is 28.7%. This is a relatively narrow range which indicates that the SanDisk Ultra USB 3.0 64GB performs reasonably consistently under varying real world conditions.

Weaknesses

Avg. Sustained Write Speed 28.2MB/s
Avg. 4K Random Read Speed 4.94MB/s
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Average Bench

(Based on 14,820 samples)
Min Avg Max
27.1 Read 99.1 161
9.7 Write 40.7 67.1
12.7 Mixed 44.8 83.1
9.72 SusWrite 28.2 43.8
62% 53.2 MB/s
Min Avg Max
2.61 4K Read 4.94 6.8
0.5 4K Write 1.62 2.4
0.9 4K Mixed 1.93 3.2
139% 2.83 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest USB (mainstream) averages a speed of 100%
6GB free, PID 5581
Operating at USB 3.0 Speed
SusWrite @10s intervals: 63 56 26 26 26 24 MB/s
Read 151
Write 61.1
Mixed 71.4
SusWrite 37
93% 80.2 MB/s
4K Read 6.4
4K Write 2.1
4K Mixed 1.6
150% 3.37 MB/s
55GB free, PID 5581
Operating at USB 3.0 Speed
SusWrite @10s intervals: 56 47 39 26 27 27 MB/s
Read 131
Write 59.3
Mixed 87.1
SusWrite 37
95% 78.7 MB/s
4K Read 3.8
4K Write 1.7
4K Mixed 2.4
154% 2.63 MB/s
14GB free, PID 5581
Operating at USB 3.0 Speed
SusWrite @10s intervals: 41 61 65 57 7.8 7.9 MB/s
Read 114
Write 8.9
Mixed 24.3
SusWrite 40.1
48% 46.8 MB/s
4K Read 4.1
4K Write 1.9
4K Mixed 0.1
83% 2.03 MB/s
57GB free, PID 5581
Operating at USB 3.0 Speed
SusWrite @10s intervals: 34 34 35 25 9.9 22 MB/s
Read 158
Write 32.5
Mixed 51.5
SusWrite 26.8
71% 67.2 MB/s
4K Read 5.5
4K Write 0.5
4K Mixed 0.9
68% 2.3 MB/s
31GB free, PID 5581
Operating at USB 3.0 Speed
SusWrite @10s intervals: 34 48 62 68 71 71 MB/s
Read 86
Write 20.1
Mixed 40.2
SusWrite 58.9
62% 51.3 MB/s
4K Read 3.6
4K Write 0.5
4K Mixed 2.8
126% 2.3 MB/s
24GB free, PID 5581
Operating at USB 2.1 Speed
SusWrite @10s intervals: 16 14 19 19 19 19 MB/s
Read 34.1
Write 18.9
Mixed 15.2
SusWrite 17.4
26% 21.4 MB/s
4K Read 3.9
4K Write 1.6
4K Mixed 2.2
144% 2.57 MB/s
14GB free, PID 5581
Operating at USB 2.1 Speed
SusWrite @10s intervals: 9.7 8.6 12 16 20 16 MB/s
Read 33.3
Write 10
Mixed 12.2
SusWrite 13.6
20% 17.3 MB/s
4K Read 3.8
4K Write 1.5
4K Mixed 2.1
137% 2.47 MB/s
14GB free, PID 5581
Operating at USB 2.1 Speed
SusWrite @10s intervals: 18 7 20 20 20 14 MB/s
Read 32
Write 11
Mixed 9.8
SusWrite 16.6
20% 17.4 MB/s
4K Read 2.5
4K Write 1.3
4K Mixed 2.1
125% 1.97 MB/s
42GB free, PID 5581
Operating at USB 2.1 Speed
SusWrite @10s intervals: 6.3 6.3 6 6 6.1 6.3 MB/s
Read 26.2
Write 6
Mixed 9.9
SusWrite 6.1
13% 12 MB/s
4K Read 0.7
4K Write 0.3
4K Mixed 0.6
33% 0.53 MB/s
14,820 MORE »

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USB Flash Drive Rankings (Price vs Performance) May 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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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 i5-11400F $210Nvidia RTX 3060-Ti $400Crucial MX500 250GB $45
Intel Core i5-11600K $255Nvidia RTX 3070 $500Samsung 850 Evo 120GB $78
Intel Core i5-10600K $210Nvidia RTX 3080 $700Samsung 860 Evo 250GB $40
HDDRAMUSB
Seagate Barracuda 1TB (2016) $30Corsair Vengeance LPX DDR4 3200 C16 2x8GB $79SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $30Corsair Vengeance LPX DDR4 3000 C15 2x8GB $102SanDisk Extreme 32GB $28
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $649SanDisk Ultra Fit 32GB $16
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