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Wd_black
WDWDS100T2X0E
▲ 500 ▼
  

Release date ≈ Q4 2023.

VS
▲ 751,646 ▼

Release date: Q3 2022.

Effective Speed 
+15%
Real World Speed
Performance profile from 37,978 user samples
Benchmark your SSD here
6 User Benchmarks
Great bench: 651% 3TB free
Poor bench: 402% 3TB free
Poor: 402% Great: 651%
SPEED RANK: 7th / 1080
37,972 User Benchmarks
Great bench: 615% 733GB free (System drive)
Poor bench: 256% 183GB free
Poor: 256% Great: 615%
SPEED RANK: 12th / 1080
Effective Speed
Effective SSD Speed 		508 % Faster effective speed.
+15% 		443 %
Average Score 
+0%
Read
Avg. Sequential Read Speed 		3802 MB/s +2% 3711 MB/s
Write
Avg. Sequential Write Speed 		3891 MB/s +3% 3769 MB/s
4K Read
Avg. 4K Random Read Speed 		58.1 MB/s 68.6 MB/s Faster random read.
+18%
4K Write
Avg. 4K Random Write Speed 		128 MB/s 184 MB/s Much faster random write.
+44%
Mixed
Avg. Sequential Mixed IO Speed 		3072 MB/s Slightly faster mixed IO speed.
+8% 		2835 MB/s
4K Mixed
Avg. 4K Random Mixed IO Speed 		69.1 MB/s 82.8 MB/s Faster random mixed IO.
+20%
SusWrite
Avg. Sustained Write Speed 		3682 MB/s Much faster sustained write speed.
+71% 		2152 MB/s
Peak Score 
+10%
Read
Peak Sequential Read Speed 		4203 MB/s 4629 MB/s Faster peak read speed.
+10%
Write
Peak Sequential Write Speed 		4180 MB/s 4976 MB/s Faster peak write speed.
+19%
4K Read
Peak 4K Random Read Speed 		73.6 MB/s 85.4 MB/s Faster peak random read.
+16%
4K Write
Peak 4K Random Write Speed 		285 MB/s 314 MB/s Faster peak random write.
+10%
Mixed
Peak Sequential Mixed IO Speed 		3350 MB/s 3409 MB/s +2%
4K Mixed
Peak 4K Random Mixed IO Speed 		99.9 MB/s 113 MB/s Faster peak random mixed IO.
+13%
SusWrite
Peak Sequential Sustained Write 60s Average 		4241 MB/s +4% 4096 MB/s
Value & Sentiment 
+50%
Market Share
Based on 77,396,883 SSDs tested
See market share leaders
User Rating
UBM User Rating 		50 % 75 % Much more popular.
+50%
Nice To Haves 
+2%
Age
Newest 		12+ Months Much more recent.
+56% 		27 Months
DQ Read
Peak 4K-64Thread Read Speed 		2519 MB/s +4% 2433 MB/s
DQ Write
Peak 4K-64Thread Write Speed 		2230 MB/s Slightly faster peak deep queue write.
+9% 		2047 MB/s
AS-SSD Total
AS-SSD Total Score 		7488 Pts +1% 7,391 Pts
DQ Mixed
Peak 4K-64Thread Mixed IO Speed 		2492 MB/s Faster peak deep queue mixed IO.
+11% 		2253 MB/s
ADQ Read
Avg. 4K-64Thread Read Speed 		1358 MB/s 1741 MB/s Faster deep queue read.
+28%
ADQ Write
Avg. 4K-64Thread Write Speed 		1170 MB/s 1362 MB/s Faster deep queue write.
+16%
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed 		1281 MB/s 1519 MB/s Faster deep queue mixed IO.
+19%
Specifications 
Capacity
Capacity 		4TB 1TB
Conclusion 
Average Bench 508%
Average Bench 443%

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

User Builds 
6
37,972
Custom PC Builder (Start a new build) Build your perfect PC: compare component prices, popularity, speed and value for money

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Solid State Drive Rankings (Price vs Performance) November 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]

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

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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

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.
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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 the gold standard for 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 $169Nvidia RTX 4060 $295WD Black SN850X M.2 2TB $135
Intel Core i5-12400F $111Nvidia RTX 4060-Ti $345WD Black SN850X M.2 1TB $80
Intel Core i5-13600K $225Nvidia RTX 4070 $500Crucial T700 M.2 4TB $350
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