WDWD6001FZWX
WDWD4004FZWX
Real World Speed
Performance profile from 4,551 user samples
1,546 User Benchmarks
Best Bench: 128% 5.5TB free
Worst Bench: 68% 197GB free
Poor: 68% Great: 128%
SPEED RANK: 6th / 1010
3,005 User Benchmarks
Best Bench: 115% 3.5TB free
Worst Bench: 66% 2TB free
Poor: 66% Great: 115%
SPEED RANK: 13th / 1010
Effective Speed
Effective HDD Speed
103 % Slightly faster effective speed.
+5%
97.9 %
Read
Avg. Sequential Read Speed
167 MB/s 170 MB/s +2%
Write
Avg. Sequential Write Speed
207 MB/s Faster write speed.
+19%
174 MB/s
4K Read
Avg. 4K Random Read Speed
4.23 MB/s Hugely faster random read.
+336%
0.97 MB/s
4K Write
Avg. 4K Random Write Speed
2.83 MB/s 5 MB/s Much faster random write.
+77%
Mixed
Avg. Sequential Mixed IO Speed
129 MB/s Much faster mixed IO speed.
+74%
74 MB/s
4K Mixed
Avg. 4K Random Mixed IO Speed
0.68 MB/s 0.68 MB/s
SusWrite
Avg. Sustained Write Speed
171 MB/s 171 MB/s
Read
Peak Sequential Read Speed
221 MB/s Slightly faster peak read speed.
+8%
204 MB/s
Write
Peak Sequential Write Speed
247 MB/s Faster peak write speed.
+20%
206 MB/s
4K Read
Peak 4K Random Read Speed
7.5 MB/s Hugely faster peak random read.
+582%
1.1 MB/s
4K Write
Peak 4K Random Write Speed
3.49 MB/s 6.3 MB/s Hugely faster peak random write.
+81%
Mixed
Peak Sequential Mixed IO Speed
198 MB/s Hugely faster peak mixed IO speed.
+135%
84.2 MB/s
4K Mixed
Peak 4K Random Mixed IO Speed
1.1 MB/s Faster peak random mixed IO.
+22%
0.9 MB/s
SusWrite
Peak Sequential Sustained Write 60s Average
218 MB/s Slightly faster peak sustained write speed.
+9%
200 MB/s
Market Share
Based on 11,250,268 HDDs tested.
Market Share
Market Share (trailing 30 days)
0.02 % 0.06 % Hugely higher market share.
+200%
Value
Value For Money
37.4 % 64.2 % Much better value.
+72%
User Rating
UBM User Rating
68 % More popular.
+17%
58 %
Price
Price (score)
$474 $175 Much cheaper.
+63%
Age
Newest
39 Months 27 Months Much more recent.
+31%
Capacity
Capacity
6TB 4TB
Hard Drive Rankings (Price vs Performance) September 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.

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.

 Frequently Asked Questions

 Best User Rated

The Best.
CPUGPUSSD
Intel Core i7-8700K $360Nvidia GTX 1070 $344Samsung 850 Evo 250GB $86
AMD Ryzen 5 1600 $150Nvidia GTX 1060-6GB $260Samsung 850 Evo 500GB $110
Intel Core i7-7700K $329AMD RX 480 $280Samsung 850 Pro 256GB $135
HDDRAMUSB
Seagate Barracuda 1TB (2016) $45Corsair Vengeance LPX DDR4 3000 C15 2x8GB $158SanDisk Extreme 64GB $80
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $899SanDisk Extreme 32GB $30
WD Blue 1TB (2012) $33Corsair Vengeance LPX DDR4 3200 C16 2x8GB $160SanDisk Ultra Fit 32GB $11
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