Average Bench: 79.4% (83rd of 1015)

more Based on 14,758 user benchmarks.  Models: WDC WD4003FZEX-00Z4SA0, WDC WD40 03FZEX-32Z4SA0, WDC WD4003FZEX-00SRLA0, WDC WD4003FZEX-0, WD4003FZ EX-00Z4SA0, WDC WD40 03FZEX-00Z4SA0, WD4003FZEX-00Z4SA0, WDC WD40 03FZEX-00Z4S, WDC WD4003FZEX-32Z4SA0, WD4003FZEX-00Z4S, WDC WD4003FZEX-00Z4S, WD4003FZ EX

Good average bench

The WD Black 4TB (2013) averaged 20.6% lower than the peak scores attained by the group leaders. This is an excellent result which ranks the WD Black 4TB (2013) near the top of the comparison list.


Avg. 4K Random Mixed IO Speed 0.99MB/s
Avg. 4K Random Write Speed 2.93MB/s

Average consistency

The range of scores (95th - 5th percentile) for the WD Black 4TB (2013) is 42.1%. This is a relatively wide range which indicates that the WD Black 4TB (2013) performs inconsistently under varying real world conditions.


Avg. Sequential Mixed IO Speed 86.7MB/s
Avg. Sustained Write Speed 133MB/s

Average Bench

(Based on 14,758 samples)
Min Avg Max
95.8 Read 143 182
81.2 Write 133 164
57.9 Mixed 86.7 111
87.5 SusWrite 133 167
91.1% 124 MB/s
Min Avg Max
0.7 4K Read 0.87 1.1
1.4 4K Write 2.93 3.6
0.6 4K Mixed 0.99 1.2
201% 1.6 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest HDD (mainstream) averages a speed of 100%
9TB free
Firmware: 01.01A01
SusWrite @10s intervals: 158 158 159 156 160 161 MB/s
Read 182
Write 167
Mixed 89.3
SusWrite 159
109% 149 MB/s
4K Read 1
4K Write 3.4
4K Mixed 1
216% 1.8 MB/s
2.5TB free
Firmware: 01.01A01
SusWrite @10s intervals: 144 144 145 145 147 147 MB/s
Read 167
Write 152
Mixed 94.7
SusWrite 145
103% 140 MB/s
4K Read 0.9
4K Write 3.5
4K Mixed 1
213% 1.8 MB/s
1TB free
Firmware: 01.01A01
SusWrite @10s intervals: 128 133 134 135 134 133 MB/s
Read 127
Write 119
Mixed 50.2
SusWrite 133
78% 107 MB/s
4K Read 0.7
4K Write 0.6
4K Mixed 0.3
74% 0.53 MB/s
866GB free
Firmware: 01.01A01
SusWrite @10s intervals: 75 81 85 86 86 80 MB/s
Read 86.5
Write 80
Mixed 63.2
SusWrite 82.2
58% 78 MB/s
4K Read 0.9
4K Write 3
4K Mixed 1
204% 1.63 MB/s
14,758 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 33,199,853 HDDs tested.


AmazonUS $1951 day
EbayUS $2891 min
Send price feedback
Typical Black 4TB (2013) Builds (Compare 2,047 builds) See popular component choices, score breakdowns and rankings.
Gaming 112%
Desktop 86%
Aircraft carrier
Workstation 99%
Nuclear submarine

Motherboard: Asus RAMPAGE V EXTREME - $310

EDIT WITH CUSTOM PC BUILDER Value: 45% - Average Total price: $1,446

Popular Black 4TB (2013) compatible motherboards:

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.
  • - 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.
Hard Drive Rankings (Price vs Performance) December 2020 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.


1015 Drives (Compared) Thousands of user benchmarks compiled into one comparison list.

See how consistently different HDDs perform with varying real world conditions. The charts also illustrate overall performance, popularity and rank.

 Frequently Asked Questions

 Best User Rated

The Best.
Intel Core i5-9600K $190Nvidia RTX 3070 $500Crucial MX500 250GB $34
Intel Core i5-9400F $153Nvidia GTX 1660S (Super) $240Samsung 850 Evo 120GB $78
Intel Core i5-10600K $260Nvidia GTX 1650S (Super) $190Samsung 860 Evo 250GB $44
Seagate Barracuda 1TB (2016) $43Corsair Vengeance LPX DDR4 3200 C16 2x8GB $64SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $40Corsair Vengeance LPX DDR4 3000 C15 2x8GB $71SanDisk Extreme 32GB $28
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $649SanDisk Ultra Fit 32GB $16
Today's hottest deals
About  •  User Guide  •  FAQs  •  Email  •  Privacy  •  Developer  •  YouTube Feedback