TEST
YOUR USB

WDC (ExtHD)

WD40 EFRX-68WT0N0 4TB

▲ 500 ▼

Release date ≈ Q4 2015.

Average Bench: 44.5% (32nd of 639)

Based on 35 user benchmarks.  Device: VID 174c PID 55aa Model: WDC WD40 EFRX-68WT0N0
Poor: 19%Average: 44.5% Great: 61%

Below average average bench

The WDC WD40 EFRX-68WT0N0 4TB averaged 55.4% 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 Write Speed 2.17MB/s
Avg. Sequential Write Speed 102MB/s

Average consistency

The range of scores (95th - 5th percentile) for the WDC WD40 EFRX-68WT0N0 4TB is 41.1%. This is a relatively wide range which indicates that the WDC WD40 EFRX-68WT0N0 4TB performs inconsistently under varying real world conditions.

Weaknesses

Avg. 4K Random Read Speed 0.77MB/s
Avg. Sequential Read Speed 107MB/s
ADVERTISEMENT

Average Bench

(Based on 35 samples)
Rank 3244.5%
Min Avg Max
25.3 Read 107 158
24.3 Write 102 149
23.5 Mixed 77.9 140
31.7 SusWrite 101 151
131% 97.1 MB/s
Min Avg Max
0.12 4K Read 0.77 1.3
0.22 4K Write 2.17 2.6
0.09 4K Mixed 0.73 1
101% 1.22 MB/s
User Benchmarks BenchSequentialRandom 4kDeep queue 4k
The fastest USB (mainstream) averages a speed of 100%
230GB free, PID 55aa
Operating at USB 3.0 Speed
SusWrite @10s intervals: 145 147 150 145 146 146 MB/s
59.8% Above average
Read 136
Write 135
Mixed 79.9
SusWrite 146
168% 124 MB/s
4K Read 0.8
4K Write 2.6
4K Mixed 1
125% 1.47 MB/s
675GB free, PID 55aa
Operating at USB 3.0 Speed
SusWrite @10s intervals: 114 116 117 118 117 120 MB/s
54.1% Above average
Read 143
Write 143
Mixed 103
SusWrite 117
170% 126 MB/s
4K Read 0.9
4K Write 2.5
4K Mixed 1
122% 1.47 MB/s
720GB free, PID 55aa
Operating at USB 3.0 Speed
SusWrite @10s intervals: 132 134 135 135 134 137 MB/s
49.9% Average
Read 92
Write 103
Mixed 81
SusWrite 134
143% 103 MB/s
4K Read 0.8
4K Write 2.3
4K Mixed 1
115% 1.37 MB/s
102GB free, PID 55aa
Operating at USB 3.0 Speed
SusWrite @10s intervals: 102 101 101 100 101 100 MB/s
42.6% Average
Read 96.5
Write 94.8
Mixed 80.4
SusWrite 101
127% 93.1 MB/s
4K Read 0.8
4K Write 2.1
4K Mixed 0.9
105% 1.27 MB/s
179GB free, PID 55aa
Operating at USB 3.0 Speed
SusWrite @10s intervals: 78 77 77 77 78 77 MB/s
33.7% Below average
Read 72.2
Write 73.4
Mixed 58.6
SusWrite 77.3
96% 70.4 MB/s
4K Read 0.8
4K Write 2
4K Mixed 0.8
98% 1.2 MB/s
3.5TB free, PID 55aa
Operating at USB 2.1 Speed
SusWrite @10s intervals: 37 39 38 39 38 39 MB/s
21.9% Poor
Read 50.6
Write 37.4
Mixed 32.5
SusWrite 38.4
52% 39.7 MB/s
4K Read 1.3
4K Write 1.9
4K Mixed 1
104% 1.4 MB/s
35 MORE »
Custom PC Builder (Start a new build) Build your perfect PC: compare component prices, popularity, speed and value for money

CHOOSE A COMPONENT:

CPU GPU SSD HDD RAM MBD
How Fast Is Your USB? (Bench your build) Size up your PC in less than a minute

Welcome to our 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 value for money upgrades.

UserBenchmark of the month

Gaming Desktop ProGaming

How it works

  • - Download and run UserBenchmark
  • - CPU tests include: integer, floating and string
  • - GPU tests include: six 3D game simulations
  • - Drive tests include: read, write, sustained write and mixed IO
  • - RAM tests include: single/multi core bandwidth and latency
  • - SkillBench (space shooter) tests user input accuracy
  • - 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 current market leaders
  • - Explore your best upgrade options with a virtual PC build
  • - Compare your in-game FPS to other users with your hardware
USB Flash Drive Rankings (Price vs Performance) April 2024 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]

ADVERTISEMENT

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

Added n/a ago.
Your
opinion?
▲Like ▼Dislike
Ready to retire
Age: 8 years

Speed Comparisons

vs SanDisk Extreme 64GB
vs SanDisk Extreme 32GB
vs SanDisk Ultra Fit 32GB
vs SanDisk Extreme 16GB
vs Lexar JumpDrive P20 64GB
vs Adata DashDrive UV128 32GB
vs SanDisk Ultra Fit 16GB
vs Corsair Flash Voyager GT 32GB
vs Lexar JumpDrive P20 32GB

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

Storage Devices FAQ
What is sustained sequential write speed?
What’s the difference between SLC, MLC and TLC?
What is 3D XPoint and how fast is it?
What’s the difference between SATA, PCIe and NVMe?
What’s the difference between NAND and V-NAND?
What is sequential write speed?
What is sequential read speed?
What is incompressible data?
USB Flash Drives
How do you install an OS from a USB flash drive?
What is the Flash Drive value for money rating?
What is effective USB Flash Drive speed?
Why should USB 2.0 Flash Drives be avoided?
File system considerations?
Do dimensions matter?
What are the main factors to look out for?
16GB USB Flash Drives
Why is bigger better?
ALL FAQs »

 Best User Rated
The Best.
CPUGPUSSD
Intel Core i5-13600K $269Nvidia RTX 4060 $295Crucial MX500 250GB $40
Intel Core i5-12400F $133Nvidia RTX 4060-Ti $385Samsung 850 Evo 120GB $80
Intel Core i5-12600K $177Nvidia RTX 4070 $539Samsung 860 Evo 250GB $52
HDDRAMUSB
Seagate Barracuda 1TB (2016) $39Corsair Vengeance LPX DDR4 3200 C16 2x8GB $40SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $37Corsair Vengeance LPX DDR4 3000 C15 2x8GB $43SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $51G.SKILL Trident Z DDR4 3200 C14 4x16GB $351SanDisk Ultra Fit 32GB $16
If you make a purchase via one of these links, our site may earn a commission
Today's hottest
Amazon Ebay
deals
CPU GPU SSD HDD USB RAM MBD
Build Test EFps
Can You Run It?
►
YouTube
*NEW*
About  •  User Guide  •  FAQs  •  Email  •  Privacy  •  Developer  •  YouTube Feedback