WDWD4000F9YZ
WDWD4003FZEX

Release date: Q2 2013.

Release date ≤ Q1 2014.

Real World Speed
Performance profile from 22,724 user samples
2,519 User Benchmarks
Best Bench: 100% 1.5TB free
Worst Bench: 49% 3TB free
Poor: 49% Great: 100%
SPEED RANK: 77th / 1015
20,205 User Benchmarks
Best Bench: 98% 3.5TB free
Worst Bench: 58% 3TB free
Poor: 58% Great: 98%
SPEED RANK: 82nd / 1015
Effective Speed
Effective HDD Speed
80.5 % +1% 79.5 %
Read
Avg. Sequential Read Speed
142 MB/s 142 MB/s
Write
Avg. Sequential Write Speed
135 MB/s +2% 132 MB/s
4K Read
Avg. 4K Random Read Speed
0.86 MB/s 0.89 MB/s +3%
4K Write
Avg. 4K Random Write Speed
2.97 MB/s 2.97 MB/s
Mixed
Avg. Sequential Mixed IO Speed
89.9 MB/s +4% 86.1 MB/s
4K Mixed
Avg. 4K Random Mixed IO Speed
0.98 MB/s 1 MB/s +2%
SusWrite
Avg. Sustained Write Speed
138 MB/s +3% 134 MB/s
Read
Peak Sequential Read Speed
180 MB/s 181 MB/s +1%
Write
Peak Sequential Write Speed
168 MB/s +3% 163 MB/s
4K Read
Peak 4K Random Read Speed
1.1 MB/s 1.1 MB/s
4K Write
Peak 4K Random Write Speed
3.6 MB/s +3% 3.5 MB/s
Mixed
Peak Sequential Mixed IO Speed
115 MB/s Slightly faster peak mixed IO speed.
+6%
109 MB/s
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
170 MB/s +2% 166 MB/s
Market Share
Based on 53,299,311 HDDs tested
Market Share
Market Share (trailing 30 days)
0.01 % 0.03 % Hugely higher market share.
+200%
Value
Value For Money
61.9 % Much better value.
+73%
35.8 %
User Rating
UBM User Rating
51 % +2% 50 %
Price
Price (score)
$104 Much cheaper.
+41%
$178
Age
Newest
131 Months 122+ Months Slightly more recent.
+7%
Capacity
Capacity
4TB 4TB
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The WD Se is an enterprise class drive designed for use in a NAS or data warehouse. Unlike the Enterprise Xe, which focuses on maximum data throughput, the focus of the Se is on balanced performance, power consumption and reliability. We only have one sample for this drive at present so for now we can't draw any robust conclusions. Based on the data we do have, in terms of value for money the WD Se lands in the middle of the (scarce) 4TB pack, besting the (2012) 4TB black by just 3.4%. From a performance perspective, with both peak and average read/writes coming in at 137/136 MB/s it's hard to tell at this point because we don't know whether to take those figures as peak or average. As averages they are very strong and as peak figures they are relatively weak. We will update this summary when we have more data. In the mean time the Seagate Desktop HDD1.5 remains our 4TB pick. [Jan '14 HDrivePro]

MORE DETAILS

Hard Drive Rankings (Price vs Performance) April 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]

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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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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

The Best.
CPUGPUSSD
Intel Core i5-13600K $273Nvidia RTX 4060 $300Crucial MX500 250GB $40
Intel Core i5-12400F $132Nvidia RTX 4060-Ti $385Samsung 850 Evo 120GB $80
Intel Core i5-12600K $186Nvidia RTX 4070 $409Samsung 860 Evo 250GB $52
HDDRAMUSB
Seagate Barracuda 1TB (2016) $34Corsair Vengeance LPX DDR4 3200 C16 2x8GB $40SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $35Corsair Vengeance LPX DDR4 3000 C15 2x8GB $43SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $51G.SKILL Trident Z DDR4 3200 C14 4x16GB $351SanDisk Ultra Fit 32GB $16
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