Average Bench: 41.3% (39th of 639)

Based on 69 user benchmarks.  Device: VID 152d PID 0567 Model: WDC WD40 EFRX-68N32N0
Poor: 16%Average: 41.3% Great: 68%

Below average average bench

The WDC WD40 EFRX-68N32N0 4TB averaged 58.6% 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 2.3MB/s
Avg. Sequential Write Speed 123MB/s

Below average consistency

The range of scores (95th - 5th percentile) for the WDC WD40 EFRX-68N32N0 4TB is 52.1%. This is a relatively wide range which indicates that the WDC WD40 EFRX-68N32N0 4TB performs inconsistently under varying real world conditions.


Avg. 4K Random Read Speed 0.93MB/s
Avg. 4K Random Mixed IO Speed 0.85MB/s

Average Bench

(Based on 69 samples)
Min Avg Max
36.5 Read 132 179
34.7 Write 123 175
28.5 Mixed 96.9 130
0.2 SusWrite 55.7 150
133% 102 MB/s
Min Avg Max
0.52 4K Read 0.93 1.1
0.95 4K Write 2.3 2.9
0.24 4K Mixed 0.85 1.1
111% 1.36 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest USB (mainstream) averages a speed of 100%
3.5TB free, PID 0567
Operating at USB 3.0 Speed
SusWrite @10s intervals: 97 101 100 100 101 100 MB/s
Read 158
Write 126
Mixed 128
SusWrite 99.7
169% 128 MB/s
4K Read 1
4K Write 2.8
4K Mixed 1.1
136% 1.63 MB/s
1.5TB free, PID 0567
Operating at USB 3.0 Speed
SusWrite @10s intervals: 109 117 118 117 119 118 MB/s
Read 113
Write 114
Mixed 73.6
SusWrite 116
141% 104 MB/s
4K Read 1
4K Write 2.5
4K Mixed 1
123% 1.5 MB/s
69 MORE »
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.

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How it works

  • - Download and run UserBenchMark.
  • - CPU tests include: integer, floating and string.
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  • - Drive tests include: read, write, sustained write and mixed IO.
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  • - SkillBench (space shooter) tests user input accuracy.
  • - Reports are generated and presented on userbenchmark.com.
  • - Identify the strongest components in your PC.
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  • - Compare your components to the current market leaders.
  • - Explore your best upgrade options with a virtual PC build.
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USB Flash Drive Rankings (Price vs Performance) August 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]


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.


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.
Intel Core i5-11600K $270Nvidia RTX 3070 $500Crucial MX500 250GB $45
Intel Core i5-11400F $260Nvidia RTX 3060-Ti $400Samsung 860 Evo 250GB $52
Intel Core i7-11700K $394Nvidia RTX 3080 $700Samsung 850 Evo 120GB $183
Seagate Barracuda 1TB (2016) $39Corsair Vengeance LPX DDR4 3200 C16 2x8GB $79SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $34Corsair Vengeance LPX DDR4 3000 C15 2x8GB $80SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $649SanDisk Ultra Fit 32GB $16
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