WDWD1003FZEX
SeagateST4000DM000
Real World Speed
Performance profile from 254,675 user samples
202,096 User Benchmarks
Best Bench: 108% 913GB free
Worst Bench: 58% 423GB free
Poor: 58% Great: 108%
SPEED RANK: 60th / 1015
52,579 User Benchmarks
Best Bench: 98% 3TB free
Worst Bench: 48% 3.5TB free
Poor: 48% Great: 98%
SPEED RANK: 101st / 1015
Effective Speed
Effective HDD Speed
83.6 % Slightly faster effective speed.
+9%
76.6 %
Read
Avg. Sequential Read Speed
154 MB/s Faster read speed.
+14%
135 MB/s
Write
Avg. Sequential Write Speed
139 MB/s Faster write speed.
+28%
109 MB/s
4K Read
Avg. 4K Random Read Speed
1.24 MB/s Hugely faster random read.
+100%
0.62 MB/s
4K Write
Avg. 4K Random Write Speed
2.46 MB/s Much faster random write.
+72%
1.43 MB/s
Mixed
Avg. Sequential Mixed IO Speed
89.3 MB/s Faster mixed IO speed.
+29%
69.2 MB/s
4K Mixed
Avg. 4K Random Mixed IO Speed
1.09 MB/s Much faster random mixed IO.
+65%
0.66 MB/s
SusWrite
Avg. Sustained Write Speed
137 MB/s +4% 132 MB/s
Read
Peak Sequential Read Speed
202 MB/s Faster peak read speed.
+16%
174 MB/s
Write
Peak Sequential Write Speed
174 MB/s Faster peak write speed.
+14%
153 MB/s
4K Read
Peak 4K Random Read Speed
1.5 MB/s Hugely faster peak random read.
+114%
0.7 MB/s
4K Write
Peak 4K Random Write Speed
2.9 MB/s Much faster peak random write.
+45%
2 MB/s
Mixed
Peak Sequential Mixed IO Speed
113 MB/s Much faster peak mixed IO speed.
+38%
81.7 MB/s
4K Mixed
Peak 4K Random Mixed IO Speed
1.2 MB/s Much faster peak random mixed IO.
+50%
0.8 MB/s
SusWrite
Peak Sequential Sustained Write 60s Average
180 MB/s +3% 174 MB/s
Market Share
Based on 40,701,554 HDDs tested.
Market Share
Market Share (trailing 30 days)
0.75 % Hugely higher market share.
+275%
0.2 %
Value
Value For Money
27.9 % 81.7 % Hugely better value.
+193%
User Rating
UBM User Rating
58 % More popular.
+14%
51 %
Price
Price (score)
$60 Cheaper.
+20%
$75
Age
Newest
95 Months Slightly more recent.
+8%
103 Months
Capacity
Capacity
1TB 4TB
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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]

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This is Seagate's most recent hard drive and their first 4TB consumer offering. With a rotational speed of just 5,900 RPM it's significantly slower than the 7,200 RPM Barracudas that it supersedes. The lower rotational speed results in approximately 10% slower sequential transfer speeds and longer access times which make this drive less suitable for use as a system drive. With peak 4k read/write speeds of 0.76/1.2 MB/s the 4TB HDD.15 lags the group leaders significantly. The HDD.15 is a far better candidate for use in a NAS (Network Attached Storage) where factors such as power consumption and cost per GB are more important than outright speeds. To conclude, the HDD.15 has a relatively disappointing small file 4K performance profile but it does offer a huge amount of storage at a very competitive price which makes it a good candidate for use in a NAS. [Aug '13 HDrivePro]

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Hard Drive Rankings (Price vs Performance) September 2021 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.

UserBenchmark of the month

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 i5-11600K $270Nvidia RTX 3060-Ti $400Crucial MX500 250GB $45
Intel Core i5-11400F $260Nvidia RTX 3070 $500Samsung 860 Evo 250GB $52
Intel Core i7-11700K $380Nvidia GTX 1660S (Super) $240Samsung 850 Evo 120GB $183
HDDRAMUSB
Seagate Barracuda 1TB (2016) $40Corsair Vengeance LPX DDR4 3200 C16 2x8GB $74SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $22Corsair Vengeance LPX DDR4 3000 C15 2x8GB $77SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $72G.SKILL Trident Z DDR4 3200 C14 4x16GB $649SanDisk Ultra Fit 32GB $16
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