WDWD40EFRX
WDWD1003FZEX

Release date: Q3 2013.

Release date: Q4 2013.

Real World Speed
Performance profile from 81,035 user samples
8,250 User Benchmarks
Best Bench: 99% 3.5TB free
Worst Bench: 45% 440GB free (System drive)
Poor: 45% Great: 99%
SPEED RANK: 116th / 1010
72,785 User Benchmarks
Best Bench: 105% 929GB free
Worst Bench: 53% 695GB free
Poor: 53% Great: 105%
SPEED RANK: 75th / 1010
Effective Speed
Effective HDD Speed
73.3 % 81.5 % Slightly faster effective speed.
+11%
Read
Avg. Sequential Read Speed
131 MB/s 150 MB/s Slightly faster read speed.
+15%
Write
Avg. Sequential Write Speed
122 MB/s 138 MB/s Slightly faster write speed.
+13%
4K Read
Avg. 4K Random Read Speed
0.84 MB/s 1.21 MB/s Much faster random read.
+44%
4K Write
Avg. 4K Random Write Speed
2.37 MB/s 2.48 MB/s +5%
Mixed
Avg. Sequential Mixed IO Speed
78.7 MB/s 85.6 MB/s Slightly faster mixed IO speed.
+9%
4K Mixed
Avg. 4K Random Mixed IO Speed
0.94 MB/s 1.1 MB/s Faster random mixed IO.
+17%
SusWrite
Avg. Sustained Write Speed
125 MB/s 133 MB/s Slightly faster sustained write speed.
+6%
Read
Peak Sequential Read Speed
177 MB/s 198 MB/s Slightly faster peak read speed.
+12%
Write
Peak Sequential Write Speed
167 MB/s 174 MB/s +4%
4K Read
Peak 4K Random Read Speed
1 MB/s 1.5 MB/s Much faster peak random read.
+50%
4K Write
Peak 4K Random Write Speed
3 MB/s +3% 2.9 MB/s
Mixed
Peak Sequential Mixed IO Speed
108 MB/s 111 MB/s +3%
4K Mixed
Peak 4K Random Mixed IO Speed
1.1 MB/s 1.2 MB/s Slightly faster peak random mixed IO.
+9%
SusWrite
Peak Sequential Sustained Write 60s Average
172 MB/s 179 MB/s +4%
Market Share
Based on 11,850,861 HDDs tested.
Market Share
Market Share (trailing 30 days)
0.17 % 1.03 % Hugely higher market share.
+506%
Value
Value For Money
67.9 % Hugely better value.
+112%
32 %
User Rating
UBM User Rating
57 % 73 % More popular.
+28%
Price
Price (score)
$124 $73 Much cheaper.
+41%
Age
Newest
61 Months 60 Months +2%
Capacity
Capacity
4TB 1TB
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This is the most recent version (2013 FZEX) of Western Digital's best performing consumer storage drive, its predecessor was the WD1002FAEX which is now four years old. With average sequential read/write speeds of 150 MB/s this version outperforms its predecessor by a whopping 50%. Small file random 4K speeds have remained broadly unchanged with average read/write rates of 0.9/2.19 MB/s. Overall the 2013 WD Black has a very good performance profile and it also represents reasonable value for money, at least in the 1TB category. There are some good alternatives to the 2013 Black including the 2012 Blue. Looking at the 2013 Black vs 2012 Blue shows that both drives have similar performance. Power consumption (6.8/6.1 Watts active/idle) and noise levels (29.5 dBA) are also identical making it a tough call between the two. There is however, as always, better value amongst the larger capacities. [Feb '14 HDrivePro]

MORE DETAILS

Hard Drive Rankings (Price vs Performance) October 2018 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 freeware 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 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.
  • - 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.
  • - Share your opinion by voting.

 Frequently Asked Questions

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CPUGPUSSD
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Intel Core i7-7700K $355AMD RX 480 $280Samsung 850 Pro 256GB $163
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