WDWD4001FFSX
WDWD2003FZEX

Release date: Q3 2014.

Release date: Q4 2013.

Real World Speed
Performance profile from 145,223 user samples
679 User Benchmarks
Best Bench: 101% 3.5TB free
Worst Bench: 59% 3.5TB free
Poor: 59% Great: 101%
SPEED RANK: 55th / 1015
144,544 User Benchmarks
Best Bench: 112% 2TB free
Worst Bench: 60% 683GB free
Poor: 60% Great: 112%
SPEED RANK: 30th / 1015
Effective Speed
Effective HDD Speed
84.1 % 88.5 % Slightly faster effective speed.
+5%
Read
Avg. Sequential Read Speed
152 MB/s 153 MB/s +1%
Write
Avg. Sequential Write Speed
140 MB/s 161 MB/s Faster write speed.
+15%
4K Read
Avg. 4K Random Read Speed
0.87 MB/s 0.95 MB/s Slightly faster random read.
+9%
4K Write
Avg. 4K Random Write Speed
3.06 MB/s +1% 3.04 MB/s
Mixed
Avg. Sequential Mixed IO Speed
93.4 MB/s Slightly faster mixed IO speed.
+8%
86.7 MB/s
4K Mixed
Avg. 4K Random Mixed IO Speed
1.02 MB/s Slightly faster random mixed IO.
+7%
0.95 MB/s
SusWrite
Avg. Sustained Write Speed
141 MB/s 155 MB/s Slightly faster sustained write speed.
+10%
Read
Peak Sequential Read Speed
184 MB/s 194 MB/s Slightly faster peak read speed.
+5%
Write
Peak Sequential Write Speed
166 MB/s 207 MB/s Faster peak write speed.
+25%
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
114 MB/s Slightly faster peak mixed IO speed.
+9%
105 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
171 MB/s 199 MB/s Faster peak sustained write speed.
+16%
Market Share
Based on 53,513,077 HDDs tested
Market Share
Market Share (trailing 30 days)
0.01 % 0.55 % Insanely higher market share.
+5,400%
Value
Value For Money
40.7 % 69.4 % Much better value.
+71%
User Rating
UBM User Rating
53 % 57 % Slightly more popular.
+8%
Price
Price (score)
$165 $51 Much cheaper.
+69%
Age
Newest
119 Months Slightly more recent.
+7%
128 Months
Capacity
Capacity
4TB 2TB
ADVERTISEMENT

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

This is the current version (2013) of Western Digital's best performing, Black, consumer storage drive. A comparison between the 2013 and 2010 versions shows that core real world performance has improved by around 15%. The 38 month old 2010 FAEX Black is also slightly more expensive at the moment, probably because retailers are slowly running out of stock. With average sequential read/write speeds of 150 MB/s and read/write 4k speeds of 0.8/2.9 MB/s the 2013 2TB WD Black has a solid performance profile but it's slightly overpriced. There is better value available amongst other drives in the group test[Jan '14 HDrivePro]

MORE DETAILS

Hard Drive Rankings (Price vs Performance) June 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]

ADVERTISEMENT

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.

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

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.
Why don’t PC brands endorse UserBenchmark?
Brands make boatloads on flagships like the 4090 and 14900KS. We help users get similar real-world performance for less money.
Why don’t youtubers promote UserBenchmark?
We don't pay youtubers, so they don't praise us. Moreover, our data obstructs youtubers who promote overpriced or inferior products.
Why does UserBenchmark have negative trustpilot reviews?
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 popular with 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 $160Nvidia RTX 4060 $290WD Black SN850X M.2 2TB $150
Intel Core i5-13600K $249Nvidia RTX 4060-Ti $385WD Black SN850X M.2 1TB $79
Intel Core i5-12400F $110Nvidia RTX 4070 $520Crucial T700 M.2 4TB $363
Today's hottest deals
If you buy something via a price link, UserBenchmark may earn a commission
About  •  User Guide  •  FAQs  •  Email  •  Privacy  •  Developer  •  YouTube Feedback