TEST
YOUR USB

ADATA (ExtHD)

SD600 256GB

▲ 500 ▼

Release date ≈ Q1 2018.

Average Bench: 148% (1st of 639)

Based on 15 user benchmarks.  Device: VID 125f PID a68a Model: ADATA SD600
Poor: 29%Average: 148% Great: 290%

Outstanding average bench

The ADATA SD600 256GB averaged 48.5% higher than the peak scores attained by the group leaders. This is an excellent result which ranks the ADATA SD600 256GB near the top of the comparison list.

Strengths

Avg. 4K-64Thread Write Speed 49.4MB/s
Avg. 4K-64Thread Mixed IO Speed 28.2MB/s

Terrible consistency

The range of scores (95th - 5th percentile) for the ADATA SD600 256GB is 261%. This is a particularly wide range which indicates that the ADATA SD600 256GB performs inconsistently under varying real world conditions.

Weaknesses

Avg. Sequential Read Speed 209MB/s
Avg. 4K Random Read Speed 15MB/s
ADVERTISEMENT

Average Bench

(Based on 15 samples)
Rank 1148%
Min Avg Max
27.5 Read 209 352
19.7 Write 191 339
23.5 Mixed 189 330
19.7 SusWrite 201 360
268% 198 MB/s
Min Avg Max
5.8 4K Read 15 26
2.5 4K Write 24.7 55
1.34 4K Mixed 16.8 32.7
1,467% 18.8 MB/s
Min Avg Max
17.5 DQ Read 23.1 28.6
32.7 DQ Write 49.4 67.2
20.3 DQ Mixed 28.2 35.4
2,725% 33.6 MB/s
User Benchmarks BenchSequentialRandom 4kDeep queue 4k
The fastest USB (mainstream) averages a speed of 100%
167GB free, PID a68a
Operating at USB 3.0 Speed
SusWrite @10s intervals: 361 361 362 358 357 357 MB/s
296% Outstanding
Read 308
Write 290
Mixed 297
SusWrite 360
432% 314 MB/s
4K Read 26
4K Write 54.4
4K Mixed 28.2
2,906% 36.2 MB/s
DQ Read 24.7
DQ Write 60.4
DQ Mixed 29.8
3,160% 38.3 MB/s
124GB free, PID a68a
Operating at USB 3.0 Speed
SusWrite @10s intervals: 357 363 365 343 339 344 MB/s
290% Outstanding
Read 267
Write 262
Mixed 263
SusWrite 352
397% 286 MB/s
4K Read 22
4K Write 55
4K Mixed 28.3
2,915% 35.1 MB/s
DQ Read 24.6
DQ Write 61.4
DQ Mixed 26.2
3,071% 37.4 MB/s
166GB free, PID a68a
Operating at USB 3.0 Speed
SusWrite @10s intervals: 295 317 320 320 320 322 MB/s
282% Outstanding
Read 346
Write 320
Mixed 306
SusWrite 316
436% 322 MB/s
4K Read 24.5
4K Write 51.2
4K Mixed 32.7
2,945% 36.1 MB/s
DQ Read 28.6
DQ Write 67.2
DQ Mixed 35.4
3,596% 43.7 MB/s
128GB free, PID a68a
Operating at USB 3.0 Speed
SusWrite @10s intervals: 202 268 295 290 289 289 MB/s
172% Outstanding
Read 283
Write 274
Mixed 272
SusWrite 272
376% 275 MB/s
4K Read 18.5
4K Write 21.8
4K Mixed 19.9
1,487% 20.1 MB/s
DQ Read 21.9
DQ Write 32.7
DQ Mixed 24.7
2,034% 26.4 MB/s
33GB free, PID a68a
Operating at USB 3.0 Speed
SusWrite @10s intervals: 196 197 198 146 90 111 MB/s
165% Outstanding
Read 264
Write 231
Mixed 235
SusWrite 156
294% 222 MB/s
4K Read 20.4
4K Write 28.7
4K Mixed 23
1,834% 24 MB/s
DQ Read 23
DQ Write 41.3
DQ Mixed 28
2,442% 30.8 MB/s
29GB free, PID a68a
Operating at USB 3.0 Speed
SusWrite @10s intervals: 112 158 113 97 130 99 MB/s
160% Outstanding
Read 271
Write 233
Mixed 208
SusWrite 118
270% 208 MB/s
4K Read 17.3
4K Write 29.6
4K Mixed 18.2
1,690% 21.7 MB/s
DQ Read 17.5
DQ Write 36.9
DQ Mixed 20.3
2,010% 24.9 MB/s
35GB free, PID a68a
Operating at USB 2.1 Speed
SusWrite @10s intervals: 26 26 26 26 27 27 MB/s
35.5% Below average
Read 32.8
Write 25.5
Mixed 29.3
SusWrite 26.4
38% 28.5 MB/s
4K Read 7
4K Write 7.6
4K Mixed 7.3
533% 7.3 MB/s
105GB free, PID a68a
Operating at USB 2.1 Speed
SusWrite @10s intervals: 25 26 25 25 25 25 MB/s
30% Poor
Read 27.5
Write 26.8
Mixed 27
SusWrite 25
36% 26.6 MB/s
4K Read 6.3
4K Write 6.2
4K Mixed 6.2
445% 6.23 MB/s
15 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
Ready to retire
Age: 6 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 $254Nvidia RTX 4060 $300Crucial MX500 250GB $39
Intel Core i5-12400F $133Nvidia RTX 4060-Ti $385Samsung 850 Evo 120GB $80
Intel Core i5-12600K $163Nvidia 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) $31Corsair Vengeance LPX DDR4 3000 C15 2x8GB $37SanDisk 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