TEST
YOUR USB

WD (ExtHD)

Elements 25A3 20TB

▲ 500 ▼

Release date ≈ Q3 2022.

Average Bench: 94.5% (5th of 639)

Based on 96 user benchmarks.  Device: VID 1058 PID 25a3 Model: WD Elements 25A3
Poor: 38%Average: 94.5% Great: 118%

Excellent average bench

The WD Elements 25A3 20TB averaged just 5.4% lower than the peak scores attained by the group leaders. This is an excellent result which ranks the WD Elements 25A3 20TB near the top of the comparison list.

Strengths

Avg. 4K-64Thread Write Speed 11.1MB/s
Avg. 4K Random Write Speed 10.1MB/s

Very poor consistency

The range of scores (95th - 5th percentile) for the WD Elements 25A3 20TB is 79.4%. This is a particularly wide range which indicates that the WD Elements 25A3 20TB performs inconsistently under varying real world conditions.

Weaknesses

Avg. 4K-64Thread Read Speed 1.57MB/s
Avg. 4K Random Read Speed 2.34MB/s
ADVERTISEMENT

Average Bench

(Based on 96 samples)
Rank 594.5%
Min Avg Max
49.7 Read 180 231
35.6 Write 175 232
30 Mixed 134 168
39.6 SusWrite 169 232
222% 165 MB/s
Min Avg Max
0.8 4K Read 2.34 4.49
6.15 4K Write 10.1 11.8
1.2 4K Mixed 1.68 2.2
409% 4.7 MB/s
Min Avg Max
0.6 DQ Read 1.57 2.25
10.4 DQ Write 11.1 11.9
1.4 DQ Mixed 1.73 2.1
443% 4.8 MB/s
User Benchmarks BenchSequentialRandom 4kDeep queue 4k
The fastest USB (mainstream) averages a speed of 100%
8.5TB free, PID 25a3
Operating at USB 3.1 Speed
SusWrite @10s intervals: 178 180 177 177 179 174 MB/s
98% Outstanding
Read 175
Write 170
Mixed 150
SusWrite 178
229% 168 MB/s
4K Read 0.9
4K Write 11
4K Mixed 1.4
425% 4.43 MB/s
DQ Read 0.7
DQ Write 11
DQ Mixed 1.5
428% 4.4 MB/s
6TB free, PID 25a3
Operating at USB 3.1 Speed
SusWrite @10s intervals: 172 169 172 169 168 171 MB/s
94.6% Outstanding
Read 144
Write 161
Mixed 138
SusWrite 170
213% 153 MB/s
4K Read 1.5
4K Write 11.8
4K Mixed 1.4
455% 4.9 MB/s
DQ Read 1.4
DQ Write 11.3
DQ Mixed 1.7
447% 4.8 MB/s
30GB free, PID 25a3
Operating at USB 3.1 Speed
SusWrite @10s intervals: 120 119 106 111 94 132 MB/s
72% Very good
Read 122
Write 122
Mixed 110
SusWrite 114
159% 117 MB/s
4K Read 1.6
4K Write 9.5
4K Mixed 1.5
380% 4.2 MB/s
DQ Read 1.1
DQ Write 8.1
DQ Mixed 1.2
320% 3.47 MB/s
96 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) May 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
Over the hill
Age: 21 months

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 Verbatim Store n Go V3 16GB

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 $273Nvidia RTX 4060 $289Crucial MX500 250GB $39
Intel Core i5-12400F $133Nvidia RTX 4060-Ti $385Samsung 850 Evo 120GB $80
Intel Core i5-12600K $168Nvidia RTX 4070 $550Samsung 860 Evo 250GB $52
HDDRAMUSB
Seagate Barracuda 1TB (2016) $39Corsair Vengeance LPX DDR4 3200 C16 2x8GB $39SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $32Corsair Vengeance LPX DDR4 3000 C15 2x8GB $45SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $62G.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