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WDWD4001FFSX
SeagateST4000DM005
▲ 53334 ▼

Release date: Q3 2014.

VS
▲ 57361 ▼

Release date: Q3 2016.

Effective Speed 
+2%
Real World Speed
Performance profile from 35,032 user samples
Benchmark your HDD here
679 User Benchmarks
Best Bench: 101% 3.5TB free
Worst Bench: 59% 3.5TB free
Poor: 59% Great: 101%
SPEED RANK: 55th / 1015
34,353 User Benchmarks
Best Bench: 105% 3.5TB free
Worst Bench: 52% 2.5TB free
Poor: 52% Great: 105%
SPEED RANK: 64th / 1015
Effective Speed
Effective HDD Speed 		84.1 % +2% 82.4 %
Average Score 
+28%
Read
Avg. Sequential Read Speed 		152 MB/s Slightly faster read speed.
+6% 		143 MB/s
Write
Avg. Sequential Write Speed 		140 MB/s Faster write speed.
+11% 		126 MB/s
4K Read
Avg. 4K Random Read Speed 		0.87 MB/s Much faster random read.
+32% 		0.66 MB/s
4K Write
Avg. 4K Random Write Speed 		3.06 MB/s Much faster random write.
+65% 		1.85 MB/s
Mixed
Avg. Sequential Mixed IO Speed 		93.4 MB/s Much faster mixed IO speed.
+43% 		65.1 MB/s
4K Mixed
Avg. 4K Random Mixed IO Speed 		1.02 MB/s Much faster random mixed IO.
+40% 		0.73 MB/s
SusWrite
Avg. Sustained Write Speed 		141 MB/s 145 MB/s +3%
Peak Score 
+27%
Read
Peak Sequential Read Speed 		184 MB/s 187 MB/s +2%
Write
Peak Sequential Write Speed 		166 MB/s 169 MB/s +2%
4K Read
Peak 4K Random Read Speed 		1.1 MB/s Much faster peak random read.
+57% 		0.7 MB/s
4K Write
Peak 4K Random Write Speed 		3.6 MB/s Much faster peak random write.
+64% 		2.2 MB/s
Mixed
Peak Sequential Mixed IO Speed 		114 MB/s Much faster peak mixed IO speed.
+48% 		77.2 MB/s
4K Mixed
Peak 4K Random Mixed IO Speed 		1.2 MB/s Much faster peak random mixed IO.
+33% 		0.9 MB/s
SusWrite
Peak Sequential Sustained Write 60s Average 		171 MB/s 187 MB/s Slightly faster peak sustained write speed.
+9%
Value & Sentiment 
+361%
Market Share
Based on 53,915,056 HDDs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0.01 % 0.14 % Insanely higher market share.
+1,300%
Value
Value For Money 		32 % 60.3 % Hugely better value.
+88%
User Rating
UBM User Rating 		53 % 57 % Slightly more popular.
+8%
Price
Price (score) 		$210 $109 Much cheaper.
+48%
Nice To Haves 
+21%
Age
Newest 		124 Months 98 Months More recent.
+21%
Specifications 
Capacity
Capacity 		4TB 4TB
Conclusion 
Average Bench 84.1%
Average Bench 82.4%

The new 4TB WD Red Pro is an upgraded version of WD's popular Red NAS (Network Attached Storage). The Pro Reds have a rotation speed of 7200 RPM unlike their regular Red counterparts which are marketed as "IntelliPower" but actually spin at fixed speeds of 5400 or 5700 RPM depending on the exact model. Comparing the regular 3TB Red and the 4TB Pro shows that the pro version is significantly faster across the board. The biggest performance gains are seen in the small file 4K area and are a direct consequence of lower access times due to the higher rotation speed of the Pro Red. As well as offering better performance the Pro Reds have 5 year warranties vs 3 years on the regular Reds. Unfortunately it's not all good news as the Pro Red is priced around 50% higher than its regular Red sibling and thus currently represents average value for money at best. [Oct '14 HDrivePro]

MORE DETAILS

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679
34,353
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Hard Drive Rankings (Price vs Performance) November 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]

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

Storage Devices FAQ
What is sustained sequential write speed?
What’s the difference between SLC, MLC and TLC?
What is 3D XPoint and how fast is it?
What’s the difference between SATA, PCIe and NVMe?
What’s the difference between NAND and V-NAND?
What is sequential write speed?
What is sequential read speed?
What is incompressible data?
What is queue depth?
What is 4K random write speed?
What is 4K random read speed?
What is AS SSD real world copy speed?
How big is 16GB?
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ALL FAQs »

 Best User Rated
Why does UserBenchmark have a bad reputation on reddit?
Marketers operate thousands of reddit accounts. Our benchmarks expose their spiel so they attack our reputation.
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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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We don't pay youtubers, so they don't praise us. Moreover, our data obstructs youtubers who promote overpriced or inferior products.
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The 200+ trustpilot reviews are mostly written by virgin marketing accounts. Real users don't give a monkey's about big brands.
Why is UserBenchmark the gold standard for users?
Instead of pursuing brands for sponsorship, we've spent 13 years publishing real-world data for users.
The Best
CPUGPUSSD
Intel Core i5-12600K $169Nvidia RTX 4060 $295WD Black SN850X M.2 2TB $135
Intel Core i5-12400F $111Nvidia RTX 4060-Ti $345WD Black SN850X M.2 1TB $80
Intel Core i5-13600K $225Nvidia RTX 4070 $500Crucial T700 M.2 4TB $350
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