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WDWD4003FZEX
▲ 503 ▼
  

Release date ≈ Q2 2016.

VS
▲ 507 ▼

Release date ≤ Q1 2014.

Effective Speed 
+3%
Real World Speed
Performance profile from 23,016 user samples
Benchmark your HDD here
2,811 User Benchmarks
Best Bench: 105% 2TB free
Worst Bench: 51% 784GB free
Poor: 51% Great: 105%
SPEED RANK: 65th / 1015
20,205 User Benchmarks
Best Bench: 98% 3.5TB free
Worst Bench: 58% 3TB free
Poor: 58% Great: 98%
SPEED RANK: 81st / 1015
Effective Speed
Effective HDD Speed 		82.2 % +3% 79.5 %
Average Score 
+3%
Read
Avg. Sequential Read Speed 		149 MB/s +5% 142 MB/s
Write
Avg. Sequential Write Speed 		134 MB/s +2% 132 MB/s
4K Read
Avg. 4K Random Read Speed 		1.41 MB/s Much faster random read.
+58% 		0.89 MB/s
4K Write
Avg. 4K Random Write Speed 		2.23 MB/s 2.97 MB/s Much faster random write.
+33%
Mixed
Avg. Sequential Mixed IO Speed 		80.2 MB/s 86.1 MB/s Slightly faster mixed IO speed.
+7%
4K Mixed
Avg. 4K Random Mixed IO Speed 		0.96 MB/s 1 MB/s +4%
SusWrite
Avg. Sustained Write Speed 		137 MB/s +2% 134 MB/s
Peak Score 
+9%
Read
Peak Sequential Read Speed 		186 MB/s +3% 181 MB/s
Write
Peak Sequential Write Speed 		176 MB/s Slightly faster peak write speed.
+8% 		163 MB/s
4K Read
Peak 4K Random Read Speed 		1.7 MB/s Much faster peak random read.
+55% 		1.1 MB/s
4K Write
Peak 4K Random Write Speed 		3.2 MB/s 3.5 MB/s Slightly faster peak random write.
+9%
Mixed
Peak Sequential Mixed IO Speed 		98 MB/s 109 MB/s Faster peak mixed IO speed.
+11%
4K Mixed
Peak 4K Random Mixed IO Speed 		1.2 MB/s Slightly faster peak random mixed IO.
+9% 		1.1 MB/s
SusWrite
Peak Sequential Sustained Write 60s Average 		181 MB/s Slightly faster peak sustained write speed.
+9% 		166 MB/s
Value & Sentiment 
+75%
Market Share
Based on 53,949,343 HDDs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0.02 % 0.05 % Hugely higher market share.
+150%
User Rating
UBM User Rating 		50 % 50 %
Nice To Haves 
+20%
Age
Newest 		103+ Months More recent.
+20% 		129+ Months
Specifications 
Capacity
Capacity 		2TB 4TB
Conclusion 
Average Bench 82.2%
Average Bench 79.5%

I GOT THIS THING FOR 20 DOLLARS, OKAY IT HAS 18 REALLOCATED SECTORS BUT FOR THE PRICE. wow, did not expect to get a top class "andrew tate" hdd. top g, 15/10, phenomenal [Sep '23 FV101]

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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.
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  • Fastest real world speed - Real World Speed measures performance for typical consumers.
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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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  • - 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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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
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Intel Core i5-12400F $111Nvidia RTX 4060-Ti $389WD Black SN850X M.2 1TB $84
Intel Core i5-12600K $167Nvidia RTX 4070 $500Crucial T700 M.2 4TB $400
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