WDWDS100T2X0E
WDWDS400T2X0E

Release date: Q3 2022.

Release date: Q3 2022.

Real World Speed
Performance profile from 46,744 user samples
37,972 User Benchmarks
Great bench: 615% 733GB free (System drive)
Poor bench: 256% 183GB free
Poor: 256% Great: 615%
SPEED RANK: 12th / 1080
8,772 User Benchmarks
Great bench: 683% 3.5TB free
Poor bench: 288% 2.5TB free (System drive)
Poor: 288% Great: 683%
SPEED RANK: 7th / 1080
Effective Speed
Effective SSD Speed
443 % 522 % Faster effective speed.
+18%
Read
Avg. Sequential Read Speed
3711 MB/s 3793 MB/s +2%
Write
Avg. Sequential Write Speed
3769 MB/s 3816 MB/s +1%
4K Read
Avg. 4K Random Read Speed
68.6 MB/s +2% 67.2 MB/s
4K Write
Avg. 4K Random Write Speed
184 MB/s 189 MB/s +3%
Mixed
Avg. Sequential Mixed IO Speed
2835 MB/s 2970 MB/s +5%
4K Mixed
Avg. 4K Random Mixed IO Speed
82.8 MB/s 83.5 MB/s +1%
SusWrite
Avg. Sustained Write Speed
2152 MB/s 3370 MB/s Much faster sustained write speed.
+57%
Read
Peak Sequential Read Speed
4629 MB/s 4696 MB/s +1%
Write
Peak Sequential Write Speed
4976 MB/s +1% 4940 MB/s
4K Read
Peak 4K Random Read Speed
85.4 MB/s +1% 84.7 MB/s
4K Write
Peak 4K Random Write Speed
314 MB/s 315 MB/s +0%
Mixed
Peak Sequential Mixed IO Speed
3409 MB/s 3586 MB/s Slightly faster peak mixed IO speed.
+5%
4K Mixed
Peak 4K Random Mixed IO Speed
113 MB/s 113 MB/s
SusWrite
Peak Sequential Sustained Write 60s Average
4096 MB/s 4656 MB/s Faster peak sustained write speed.
+14%
Market Share
Based on 76,391,292 SSDs tested
Market Share
Market Share (trailing 30 days)
0.51 % Hugely higher market share.
+122%
0.23 %
Value
Value For Money
175 % 241 % Much better value.
+38%
User Rating
UBM User Rating
74 % +3% 72 %
Price
Price (score)
$90 Much cheaper.
+69%
$293
Age
Newest
23 Months 23 Months
DQ Read
Peak 4K-64Thread Read Speed
2433 MB/s 2486 MB/s +2%
DQ Write
Peak 4K-64Thread Write Speed
2047 MB/s 2073 MB/s +1%
AS-SSD Total
AS-SSD Total Score
7,391 Pts 7497 Pts +1%
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
2253 MB/s 2284 MB/s +1%
ADQ Read
Avg. 4K-64Thread Read Speed
1741 MB/s 1787 MB/s +3%
ADQ Write
Avg. 4K-64Thread Write Speed
1362 MB/s 1382 MB/s +1%
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
1519 MB/s 1548 MB/s +2%
Capacity
Capacity
1TB 4TB
ADVERTISEMENT

The WD Black SN850X has a superb consumer performance profile. As well as offering solid burst speeds of 5 GB/s, the SN850X also offers respectable out of cache performance. At current prices (1TB $90 USD, 2TB $145 USD and 4TB $290 USD) the WD Black SN850X is our top value pick at every capacity. [Jun '24 SSDrivePro]

MORE DETAILS

The WD Black SN850X has a superb consumer performance profile. As well as offering solid burst speeds of 5 GB/s, the SN850X also offers respectable out of cache performance. At current prices (1TB $90 USD, 2TB $145 USD and 4TB $290 USD) the WD Black SN850X is our top value pick at every capacity. [Jun '24 SSDrivePro]

MORE DETAILS

Solid State Drive Rankings (Price vs Performance) July 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.
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

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

 Frequently Asked Questions

 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 $165Nvidia RTX 4060 $293WD Black SN850X M.2 2TB $119
Intel Core i5-13600K $248Nvidia RTX 4060-Ti $388WD Black SN850X M.2 1TB $90
Intel Core i5-12400F $110Nvidia RTX 4070 $520Crucial T700 M.2 4TB $418
Today's hottest deals
If you buy something via a price link, UserBenchmark may earn a commission
About  •  User Guide  •  FAQs  •  Email  •  Privacy  •  Developer  •  YouTube Feedback