TEST
YOUR SSD
ADD TO PC
BUILD

JMicron 4TB

▲ 500 ▼

Release date ≈ Q3 2020.

Average Bench: 56.2% (847th of 1080)

Based on 6 user benchmarks.  Model: JMicron
Poor: 49%Average: 56.2% Great: 61%

Average average bench

The JMicron 4TB averaged 43.7% 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 Mixed IO Speed 92.2MB/s
Avg. 4K Random Read Speed 20MB/s

Very good consistency

The range of scores (95th - 5th percentile) for the JMicron 4TB is just 11.2%. This is a relatively narrow range which indicates that the JMicron 4TB performs reasonably consistently under varying real world conditions.

Weaknesses

Avg. 4K-64Thread Write Speed 73.7MB/s
Avg. 4K-64Thread Read Speed 114MB/s
ADVERTISEMENT

Average Bench

(Based on 6 samples)
Rank 84756.2%
Min Avg Max
242 Read 321 381
269 Write 295 333
263 Mixed 284 326
164 SusWrite 265 339
65.6% 291 MB/s
Min Avg Max
17.8 4K Read 20 24.4
18.6 4K Write 28.5 39.2
16.6 4K Mixed 22.3 27.1
74% 23.6 MB/s
Min Avg Max
35.3 DQ Read 114 218
42.8 DQ Write 73.7 153
46.4 DQ Mixed 92.2 142
69.2% 93.3 MB/s
User Benchmarks BenchSequentialRandom 4kDeep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
2.5TB free
Firmware: 0508
SusWrite @10s intervals: 309 324 323 322 318 323 MB/s
60.5% Good
Read 341
Write 285
Mixed 263
SusWrite 320
68% 302 MB/s
4K Read 18.7
4K Write 36.7
4K Mixed 24.6
79% 26.7 MB/s
DQ Read 35.3
DQ Write 75.9
DQ Mixed 46.4
38% 52.5 MB/s
1TB free
Firmware: 0202
SusWrite @10s intervals: 232 229 233 228 222 135 MB/s
59.1% Above average
Read 344
Write 282
Mixed 312
SusWrite 213
65% 288 MB/s
4K Read 24.4
4K Write 25.3
4K Mixed 25.1
82% 24.9 MB/s
DQ Read 218
DQ Write 76.1
DQ Mixed 142
106% 145 MB/s
160GB free
Firmware: 9125
SusWrite @10s intervals: 342 303 160 162 164 163 MB/s
58.1% Above average
Read 381
Write 333
Mixed 326
SusWrite 216
70% 314 MB/s
4K Read 20.9
4K Write 39.2
4K Mixed 27.1
87% 29.1 MB/s
DQ Read 55.4
DQ Write 48.7
DQ Mixed 57.4
42% 53.8 MB/s
800GB free
Firmware: 0203
SusWrite @10s intervals: 369 326 315 351 310 344 MB/s
55.6% Above average
Read 309
Write 290
Mixed 268
SusWrite 336
68% 301 MB/s
4K Read 19.5
4K Write 18.6
4K Mixed 17.8
62% 18.6 MB/s
DQ Read 114
DQ Write 42.8
DQ Mixed 98.5
68% 85.2 MB/s
800GB free
Firmware: 0203
SusWrite @10s intervals: 368 345 313 354 305 352 MB/s
54.9% Above average
Read 308
Write 269
Mixed 273
SusWrite 339
67% 297 MB/s
4K Read 18.8
4K Write 18.6
4K Mixed 16.6
60% 18 MB/s
DQ Read 110
DQ Write 46
DQ Mixed 86.6
62% 80.9 MB/s
2TB free
Firmware: 0102
SusWrite @10s intervals: 247 214 166 97 124 136 MB/s
49.3% Average
Read 242
Write 310
Mixed 265
SusWrite 164
55% 245 MB/s
4K Read 17.8
4K Write 32.3
4K Mixed 22.7
73% 24.3 MB/s
DQ Read 150
DQ Write 153
DQ Mixed 122
100% 142 MB/s

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 76,254,340 SSDs tested

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 SSD? (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
Solid State Drive Rankings (Price vs Performance) June 2024 SSD Rankings

Welcome to our SSD comparison. We calculate effective speed for both SATA and NVMe drives based on real world performance then adjust by current prices per GB to yield a value for money rating. Our calculated values are checked against thousands of individual user ratings. The customizable table below combines these factors to bring you the definitive list of top SSDs. [SSDrivePro]

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: 3 years

Speed Comparisons

vs WD Black SN850X M.2 2TB
vs WD Black SN850X M.2 1TB
vs Crucial T700 M.2 4TB
vs WD Black SN850X M.2 4TB
vs Samsung 990 Pro M.2 2TB
vs Samsung 990 Pro M.2 4TB
vs Samsung 990 Pro M.2 1TB
vs Crucial T705 M.2 2TB
vs Crucial T705 M.2 1TB

1080 Drives (Compared) Thousands of user benchmarks compiled into one comparison list

See how consistently different SSDs 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?
What is queue depth?
Solid State Drives
What is the SSD value for money rating?
What is 4K 64 thread write speed?
Can CPU power saving states (C1,C2,C3) impact SSD speed?
What is the effective SSD speed index?
How is the AS SSD write score calculated?
How is the AS SSD read score calculated?
How is the AS SSD total score calculated?
ALL FAQs »

 Best User Rated
Why does UserBenchmark have a bad reputation on reddit?
Marketers operate thousands of reddit accounts. Our benchmarks expose their spiel so they attack our reputation.
Why don’t PC brands endorse UserBenchmark?
Brands make boatloads on flagships like the 4090 and 14900KS. We help users get similar real-world performance for less money.
Why don’t youtubers promote UserBenchmark?
We don't pay youtubers, so they don't praise us. Moreover, our data obstructs youtubers who promote overpriced or inferior products.
Why does UserBenchmark have negative trustpilot reviews?
The 200+ trustpilot reviews are mostly written by virgin marketing accounts. Real users don't give a monkey's about big brands.
Why is UserBenchmark popular with users?
Instead of pursuing brands for sponsorship, we've spent 13 years publishing real-world data for users.
The Best
CPUGPUSSD
Intel Core i5-12600K $160Nvidia RTX 4060 $290WD Black SN850X M.2 2TB $160
Intel Core i5-13600K $260Nvidia RTX 4060-Ti $388WD Black SN850X M.2 1TB $79
Intel Core i5-12400F $110Nvidia RTX 4070 $520Crucial T700 M.2 4TB $353
Today's hottest
Amazon Ebay
deals
If you buy something via a price link, UserBenchmark may earn a commission
Build Test EFps
Can You Run It?
►
YouTube
*NEW*
About  •  User Guide  •  FAQs  •  Email  •  Privacy  •  Developer  •  YouTube Feedback