WDWD6001FZWX
WDWD4003FZEX
Real World Speed
Performance profile from 11,562 user samples
2,441 User Benchmarks
Best Bench: 122% 5.5TB free
Worst Bench: 67% 4.5TB free
Poor: 67% Great: 122%
SPEED RANK: 8th / 1015
9,121 User Benchmarks
Best Bench: 99% 5TB free
Worst Bench: 54% 2TB free
Poor: 54% Great: 99%
SPEED RANK: 85th / 1015
Effective Speed
Effective HDD Speed
97.9 % Faster effective speed.
+23%
79.8 %
Read
Avg. Sequential Read Speed
167 MB/s Faster read speed.
+16%
144 MB/s
Write
Avg. Sequential Write Speed
202 MB/s Much faster write speed.
+51%
134 MB/s
4K Read
Avg. 4K Random Read Speed
4.61 MB/s Hugely faster random read.
+430%
0.87 MB/s
4K Write
Avg. 4K Random Write Speed
3.16 MB/s Slightly faster random write.
+8%
2.92 MB/s
Mixed
Avg. Sequential Mixed IO Speed
102 MB/s Faster mixed IO speed.
+19%
85.6 MB/s
4K Mixed
Avg. 4K Random Mixed IO Speed
1.02 MB/s +2% 1 MB/s
SusWrite
Avg. Sustained Write Speed
173 MB/s Faster sustained write speed.
+29%
134 MB/s
Read
Peak Sequential Read Speed
212 MB/s Faster peak read speed.
+16%
183 MB/s
Write
Peak Sequential Write Speed
246 MB/s Much faster peak write speed.
+50%
164 MB/s
4K Read
Peak 4K Random Read Speed
7 MB/s Hugely faster peak random read.
+536%
1.1 MB/s
4K Write
Peak 4K Random Write Speed
3.5 MB/s 3.5 MB/s
Mixed
Peak Sequential Mixed IO Speed
126 MB/s Faster peak mixed IO speed.
+16%
109 MB/s
4K Mixed
Peak 4K Random Mixed IO Speed
1.1 MB/s 1.2 MB/s Slightly faster peak random mixed IO.
+9%
SusWrite
Peak Sequential Sustained Write 60s Average
217 MB/s Faster peak sustained write speed.
+29%
168 MB/s
Market Share
Based on 17,628,437 HDDs tested.
Market Share
Market Share (trailing 30 days)
0.02 % 0.08 % Hugely higher market share.
+300%
Value
Value For Money
60.4 % Much better value.
+48%
40.7 %
User Rating
UBM User Rating
68 % Much more popular.
+33%
51 %
Price
Price (score)
$279 $225 Cheaper.
+19%
Age
Newest
48 Months More recent.
+25%
64+ Months
Capacity
Capacity
6TB 4TB
Hard Drive Rankings (Price vs Performance) June 2019 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 $365Nvidia GTX 1070 $335Samsung 850 Evo 250GB $85
AMD Ryzen 5 2600 $144Nvidia GTX 1060-6GB $230Samsung 850 Evo 500GB $100
AMD Ryzen 7 2700X $280Nvidia GTX 1080-Ti $808Samsung 850 Pro 256GB $97
HDDRAMUSB
Seagate Barracuda 1TB (2016) $44Corsair Vengeance LPX DDR4 3000 C15 2x8GB $79SanDisk Extreme 64GB $128
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $646SanDisk Extreme 32GB $48
WD Blue 1TB (2012) $45Corsair Vengeance LPX DDR4 3200 C16 2x8GB $85SanDisk Ultra Fit 32GB $12
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