TEST
YOUR USB

ADATA (ExtHD)

HM800 4TB

▲ 500 ▼

Release date ≈ Q1 2020.

Average Bench: 71.7% (7th of 639)

Based on 84 user benchmarks.  Device: VID 125f PID a92a Model: ADATA HM800
Poor: 28%Average: 71.7% Great: 110%

Good average bench

The ADATA HM800 4TB averaged 28.3% 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-64Thread Write Speed 10.9MB/s
Avg. 4K Random Write Speed 8.18MB/s

Terrible consistency

The range of scores (95th - 5th percentile) for the ADATA HM800 4TB is 81.8%. This is a particularly wide range which indicates that the ADATA HM800 4TB performs inconsistently under varying real world conditions.

Weaknesses

Avg. 4K-64Thread Read Speed 0.55MB/s
Avg. 4K Random Mixed IO Speed 0.83MB/s
ADVERTISEMENT

Average Bench

(Based on 84 samples)
Rank 771.7%
Min Avg Max
32.2 Read 130 203
22.7 Write 121 173
25.2 Mixed 83.2 128
17.5 SusWrite 117 182
150% 113 MB/s
Min Avg Max
0.8 4K Read 9.94 20.6
0.7 4K Write 8.18 12.4
0.3 4K Mixed 0.83 1.1
343% 6.31 MB/s
Min Avg Max
0.4 DQ Read 0.55 0.7
9.54 DQ Write 10.9 12.1
0.37 DQ Mixed 0.87 1.23
403% 4.11 MB/s
User Benchmarks BenchSequentialRandom 4kDeep queue 4k
The fastest USB (mainstream) averages a speed of 100%
647GB free, PID a92a
Operating at USB 3.0 Speed
SusWrite @10s intervals: 127 128 127 127 126 127 MB/s
96.2% Outstanding
Read 190
Write 169
Mixed 106
SusWrite 127
193% 148 MB/s
4K Read 20.3
4K Write 11.8
4K Mixed 1.1
514% 11.1 MB/s
DQ Read 0.6
DQ Write 10.8
DQ Mixed 1
404% 4.13 MB/s
3TB free, PID a92a
Operating at USB 3.0 Speed
SusWrite @10s intervals: 136 136 134 136 136 136 MB/s
90.6% Outstanding
Read 154
Write 133
Mixed 104
SusWrite 136
175% 132 MB/s
4K Read 15.8
4K Write 11.4
4K Mixed 1.1
484% 9.43 MB/s
DQ Read 0.6
DQ Write 11.7
DQ Mixed 1.1
438% 4.47 MB/s
2TB free, PID a92a
Operating at USB 3.0 Speed
SusWrite @10s intervals: 149 156 155 155 148 147 MB/s
68.3% Good
Read 114
Write 156
Mixed 65.9
SusWrite 152
169% 122 MB/s
4K Read 1.4
4K Write 6
4K Mixed 0.9
240% 2.77 MB/s
3TB free, PID a92a
Operating at USB 3.0 Speed
SusWrite @10s intervals: 91 89 88 89 89 89 MB/s
67.8% Good
Read 104
Write 104
Mixed 79.2
SusWrite 89
126% 93.9 MB/s
4K Read 1.8
4K Write 10.7
4K Mixed 1
405% 4.5 MB/s
DQ Read 0.5
DQ Write 11.6
DQ Mixed 0.7
420% 4.27 MB/s
2.5TB free, PID a92a
Operating at USB 3.0 Speed
SusWrite @10s intervals: 152 142 141 126 146 149 MB/s
64.7% Good
Read 108
Write 159
Mixed 69.5
SusWrite 143
167% 120 MB/s
4K Read 1.8
4K Write 5.7
4K Mixed 0.9
231% 2.8 MB/s
521GB free, PID a92a
Operating at USB 3.0 Speed
SusWrite @10s intervals: 83 89 87 86 88 86 MB/s
57.4% Above average
Read 126
Write 129
Mixed 49.8
SusWrite 86.4
128% 97.8 MB/s
4K Read 1.6
4K Write 6.5
4K Mixed 0.8
254% 2.97 MB/s
3TB free, PID a92a
Operating at USB 3.0 Speed
SusWrite @10s intervals: 168 164 167 165 168 168 MB/s
56.6% Above average
Read 116
Write 134
Mixed 113
SusWrite 166
186% 132 MB/s
4K Read 4.4
4K Write 0.8
4K Mixed 0.4
57% 1.87 MB/s
84 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: 4 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 $279Nvidia RTX 4060 $300Crucial MX500 250GB $40
Intel Core i5-12400F $134Nvidia RTX 4060-Ti $385Samsung 850 Evo 120GB $80
Intel Core i5-12600K $182Nvidia RTX 4070 $409Samsung 860 Evo 250GB $52
HDDRAMUSB
Seagate Barracuda 1TB (2016) $39Corsair Vengeance LPX DDR4 3200 C16 2x8GB $40SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $30Corsair 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