Average Bench: 26.1% (137th of 639)

Based on 8,892 user benchmarks.  Device: VID 0781 PID 5581 Models: SanDisk SanDisk Ultra, SanDisk Ultra
Poor: 11%Average: 26.1% Great: 39%

Very poor average bench

The SanDisk Ultra USB 3.0 64GB averaged 73.9% 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 1.84MB/s
Avg. 4K Random Write Speed 1.61MB/s

Good consistency

The range of scores (95th - 5th percentile) for the SanDisk Ultra USB 3.0 64GB is 27.7%. 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 27.8MB/s
Avg. 4K Random Read Speed 4.92MB/s
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Average Bench

(Based on 8,892 samples)
Min Avg Max
24.6 Read 96 162
10.8 Write 40.1 66.3
12.4 Mixed 43.8 79.4
9.68 SusWrite 27.8 41.6
60.7% 51.9 MB/s
Min Avg Max
2.4 4K Read 4.92 6.8
0.5 4K Write 1.61 2.3
0.88 4K Mixed 1.84 3.1
135% 2.79 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest USB (mainstream) averages a speed of 100%
56GB free, PID 5581
Operating at USB 3.0 Speed
SusWrite @10s intervals: 65 58 26 24 24 24 MB/s
Read 160
Write 64.8
Mixed 63
SusWrite 36.6
92% 81.2 MB/s
4K Read 6.8
4K Write 2
4K Mixed 1.6
148% 3.47 MB/s
27GB free, PID 5581
Operating at USB 3.0 Speed
SusWrite @10s intervals: 37 55 53 24 25 24 MB/s
Read 153
Write 45.1
Mixed 70.2
SusWrite 36.4
86% 76.1 MB/s
4K Read 4.6
4K Write 1.5
4K Mixed 1.6
122% 2.57 MB/s
58GB free, PID 5581
Operating at USB 3.0 Speed
SusWrite @10s intervals: 63 27 18 23 8.4 24 MB/s
Read 126
Write 59.2
Mixed 78
SusWrite 27.3
87% 72.7 MB/s
4K Read 4
4K Write 2.2
4K Mixed 2.9
188% 3.03 MB/s
49GB free, PID 5581
Operating at USB 3.0 Speed
SusWrite @10s intervals: 23 28 43 41 44 41 MB/s
Read 142
Write 51.2
Mixed 29.9
SusWrite 36.5
71% 65 MB/s
4K Read 4.9
4K Write 0.7
4K Mixed 2.9
141% 2.83 MB/s
57GB free, PID 5581
Operating at USB 3.0 Speed
SusWrite @10s intervals: 33 32 32 28 18 19 MB/s
Read 144
Write 27.2
Mixed 50.7
SusWrite 27
66% 62.2 MB/s
4K Read 4.2
4K Write 0.5
4K Mixed 0.9
63% 1.87 MB/s
28GB free, PID 5581
Operating at USB 2.1 Speed
SusWrite @10s intervals: 21 21 21 21 13 8 MB/s
Read 35.7
Write 21.3
Mixed 25
SusWrite 17.4
32% 24.9 MB/s
4K Read 4.3
4K Write 2.2
4K Mixed 3
193% 3.17 MB/s
32GB free, PID 5581
Operating at USB 2.1 Speed
SusWrite @10s intervals: 16 4.9 20 16 20 20 MB/s
Read 37
Write 18.7
Mixed 18.5
SusWrite 16.2
28% 22.6 MB/s
4K Read 4.4
4K Write 2
4K Mixed 2.5
169% 2.97 MB/s
11GB free, PID 5581
Operating at USB 2.1 Speed
SusWrite @10s intervals: 15 28 28 28 28 28 MB/s
Read 33
Write 27.5
Mixed 26.7
SusWrite 25.7
38% 28.2 MB/s
4K Read 4.2
4K Write 0.9
4K Mixed 1.3
90% 2.13 MB/s
8,892 MORE »

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USB Flash Drive Rankings (Price vs Performance) December 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 $145Nvidia GTX 1660S (Super) $260Crucial MX500 250GB $45
Intel Core i5-9600K $200AMD RX 590 $180Samsung 850 Evo 120GB $58
Intel Core i7-9700K $369Nvidia GTX 1650S (Super) $160Samsung 850 Pro 512GB $230
HDDRAMUSB
Seagate Barracuda 1TB (2016) $35Corsair Vengeance LPX DDR4 3200 C16 2x8GB $65SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $38Corsair Vengeance LPX DDR4 3000 C15 2x8GB $63SanDisk Extreme 32GB $46
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $613SanDisk Extreme 16GB $24
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