Average Bench: 31.4% (73rd of 634)

Based on 1,389 user benchmarks.  Device: VID 0781 PID 5590 Model: SanDisk Ultra

Poor average bench

The SanDisk Ultra 64GB averaged 68.5% 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.


Avg. 4K Random Write Speed 2.31MB/s
Avg. 4K Random Mixed IO Speed 1.24MB/s

Average consistency

The range of scores (95th - 5th percentile) for the SanDisk Ultra 64GB is 42.2%. This is a relatively wide range which indicates that the SanDisk Ultra 64GB performs inconsistently under varying real world conditions.


Avg. 4K Random Read Speed 4.79MB/s
Avg. Sequential Read Speed 90.5MB/s

Average Bench

(Based on 1,389 samples)
Min Avg Max
27.5 Read 90.5 155
11.4 Write 46.2 105
16.3 Mixed 57 119
75.2% 64.6 MB/s
Min Avg Max
3.08 4K Read 4.79 7.35
1.4 4K Write 2.31 3.24
0.82 4K Mixed 1.24 1.49
139% 2.78 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest USB (mainstream) averages a speed of 100%
6GB free, PID 5590
Operating at USB 3.0 Speed
Read 157
Write 56.1
Mixed 78.3
106% 97.1 MB/s
4K Read 7.58
4K Write 1.68
4K Mixed 1.4
133% 3.55 MB/s
34GB free, PID 5590
Operating at USB 3.0 Speed
Read 114
Write 46.8
Mixed 58.1
81% 72.9 MB/s
4K Read 5.14
4K Write 3.11
4K Mixed 1.37
172% 3.21 MB/s
54GB free, PID 5590
Operating at USB 3.0 Speed
Read 159
Write 9.94
Mixed 15.9
49% 61.8 MB/s
4K Read 7.57
4K Write 1.73
4K Mixed 1.49
138% 3.6 MB/s
1,389 MORE »
Typical Ultra 64GB Builds (Compare 19,137 builds) See popular component choices, score breakdowns and rankings.
Gaming 12%
Tree trunk
Desktop 57%
Workstation 23%

Disqualified System: bin bin

EDIT WITH CUSTOM PC BUILDER Value: 70% - Very good Total price: $410

Popular Ultra 64GB systems:

How Fast Is Your USB? (Bench your build) Size up your PC in less than a minute.

Welcome to our freeware PC speed test tool. UserBenchmark will test your PC and compare the results to other users with the same components. You can quickly size up your PC, identify hardware problems and explore the best upgrades.

UserBenchmark of the month

How it works

  • - Download and run UserBenchMark (UBM).
  • - CPU tests include: integer, floating and string.
  • - GPU tests include: six 3D game simulations.
  • - Drive tests include: read, write and mixed IO.
  • - Checks include: 4k Align, NCQ, TRIM, SATA, USB & S.M.A.R.T.
  • - RAM tests include: single/multi core bandwidth and latency.
  • - Reports are generated and presented on userbenchmark.com.
  • - Identify the strongest components in your PC.
  • - See speed test results from other users.
  • - Compare your components to the highest voted in class.
  • - Find the best upgrades.
  • - Share your opinion by voting.
USB Flash Drive Rankings (Price vs Performance) March 2018 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]


Group Test Results

  • Best user rated - User sentiment trumps benchmarks for this comparison.
  • Fastest real world speed - Real World Speed measures performance for typical flash usage patterns.
  • Best value for money - Value for money is based on real world performance, price and capacity.
  • Raw speed comparison - Raw speed readings.


634 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.
Intel Core i7-8700K $330Nvidia GTX 1070 $447Samsung 850 Evo 250GB $85
Intel Core i7-7700K $290Nvidia GTX 1060-6GB $335Samsung 850 Evo 500GB $150
Intel Core i5-8600K $243AMD RX 480 $400Samsung 850 Pro 256GB $120
Seagate Barracuda 1TB (2016) $44Corsair Vengeance LPX DDR4 3000 C15 2x8GB $190SanDisk Extreme 64GB $44
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $931SanDisk Extreme 32GB $23
Seagate Barracuda 2TB (2016) $60Corsair Vengeance LPX DDR4 3200 C16 2x8GB $216SanDisk Extreme 16GB $18
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