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WDWD4003FZEX
Seagate
▲ 507 ▼

Release date ≤ Q1 2014.

VS
▲ 500 ▼
  

Release date ≈ Q2 2017.

Effective Speed 
+10%
Real World Speed
Performance profile from 21,563 user samples
Benchmark your HDD here
20,205 User Benchmarks
Best Bench: 98% 3.5TB free
Worst Bench: 58% 3TB free
Poor: 58% Great: 98%
SPEED RANK: 81st / 1015
1,358 User Benchmarks
Best Bench: 107% 5.5TB free
Worst Bench: 59% 865GB free
Poor: 59% Great: 107%
SPEED RANK: 35th / 1015
Effective Speed
Effective HDD Speed 		79.5 % 87.7 % Faster effective speed.
+10%
Average Score 
+46%
Read
Avg. Sequential Read Speed 		142 MB/s 153 MB/s Slightly faster read speed.
+8%
Write
Avg. Sequential Write Speed 		132 MB/s 152 MB/s Faster write speed.
+15%
4K Read
Avg. 4K Random Read Speed 		0.89 MB/s 4.41 MB/s Hugely faster random read.
+396%
4K Write
Avg. 4K Random Write Speed 		2.97 MB/s Much faster random write.
+66% 		1.79 MB/s
Mixed
Avg. Sequential Mixed IO Speed 		86.1 MB/s Faster mixed IO speed.
+14% 		75.6 MB/s
4K Mixed
Avg. 4K Random Mixed IO Speed 		1 MB/s Faster random mixed IO.
+28% 		0.78 MB/s
SusWrite
Avg. Sustained Write Speed 		134 MB/s 152 MB/s Faster sustained write speed.
+13%
Peak Score 
+69%
Read
Peak Sequential Read Speed 		181 MB/s 187 MB/s +3%
Write
Peak Sequential Write Speed 		163 MB/s 183 MB/s Faster peak write speed.
+12%
4K Read
Peak 4K Random Read Speed 		1.1 MB/s 7.3 MB/s Hugely faster peak random read.
+564%
4K Write
Peak 4K Random Write Speed 		3.5 MB/s Much faster peak random write.
+75% 		2 MB/s
Mixed
Peak Sequential Mixed IO Speed 		109 MB/s Faster peak mixed IO speed.
+22% 		89 MB/s
4K Mixed
Peak 4K Random Mixed IO Speed 		1.1 MB/s Faster peak random mixed IO.
+15% 		0.96 MB/s
SusWrite
Peak Sequential Sustained Write 60s Average 		166 MB/s 189 MB/s Faster peak sustained write speed.
+14%
Value & Sentiment 
+33%
Market Share
Based on 53,964,503 HDDs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0.05 % Much higher market share.
+67% 		0.03 %
User Rating
UBM User Rating 		50 % 50 %
Nice To Haves 
+30%
Age
Newest 		130+ Months 91+ Months Much more recent.
+30%
Specifications 
Capacity
Capacity 		4TB 6TB
User Builds 
20,205
1,358
Custom PC Builder (Start a new build) Build your perfect PC: compare component prices, popularity, speed and value for money

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Hard Drive Rankings (Price vs Performance) November 2024 HDD Rankings

We calculate effective speed which measures performance for typical consumers. Effective speed is adjusted by current cost per GB to yield value for money. 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 HDDs. [HDrivePro]

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 HDD? (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.

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  • - GPU tests include: six 3D game simulations
  • - Drive tests include: read, write, sustained write and mixed IO
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  • - Reports are generated and presented on userbenchmark.com
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What is 4K random write speed?
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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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The Best
CPUGPUSSD
Intel Core i5-13600K $210Nvidia RTX 4060 $285WD Black SN850X M.2 2TB $125
Intel Core i5-12600K $154Nvidia RTX 4060-Ti $389WD Black SN850X M.2 1TB $80
Intel Core i5-12400F $111Nvidia RTX 4070 $500Crucial T700 M.2 4TB $320
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