WDWD40EFRX
SeagateST4000VN008

Release date: Q3 2013.

VS
About

Release date: Q3 2016.

Real World Speed
Performance profile from 18,999 user samples
16,020 User Benchmarks
Best Bench: 101% 3.5TB free
Worst Bench: 47% 1GB free
Poor: 47% Great: 101%
SPEED RANK: 101st / 1015
2,979 User Benchmarks
Best Bench: 109% 3.5TB free
Worst Bench: 59% 3.5TB free
Poor: 59% Great: 109%
SPEED RANK: 38th / 1015
Effective Speed
Effective HDD Speed
77.1 % 88.6 % Slightly faster effective speed.
+15%
Read
Avg. Sequential Read Speed
138 MB/s 154 MB/s Slightly faster read speed.
+12%
Write
Avg. Sequential Write Speed
128 MB/s 153 MB/s Faster write speed.
+20%
4K Read
Avg. 4K Random Read Speed
0.85 MB/s Faster random read.
+25%
0.68 MB/s
4K Write
Avg. 4K Random Write Speed
2.43 MB/s Much faster random write.
+33%
1.83 MB/s
Mixed
Avg. Sequential Mixed IO Speed
81.2 MB/s Faster mixed IO speed.
+15%
70.5 MB/s
4K Mixed
Avg. 4K Random Mixed IO Speed
0.96 MB/s Faster random mixed IO.
+19%
0.81 MB/s
SusWrite
Avg. Sustained Write Speed
131 MB/s 155 MB/s Faster sustained write speed.
+18%
Read
Peak Sequential Read Speed
180 MB/s 193 MB/s Slightly faster peak read speed.
+7%
Write
Peak Sequential Write Speed
168 MB/s 189 MB/s Slightly faster peak write speed.
+12%
4K Read
Peak 4K Random Read Speed
1.1 MB/s Much faster peak random read.
+38%
0.8 MB/s
4K Write
Peak 4K Random Write Speed
3 MB/s Much faster peak random write.
+36%
2.2 MB/s
Mixed
Peak Sequential Mixed IO Speed
107 MB/s Faster peak mixed IO speed.
+24%
86.3 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
176 MB/s 192 MB/s Slightly faster peak sustained write speed.
+9%
Market Share
Based on 19,233,233 HDDs tested.
Market Share
Market Share (trailing 30 days)
0.2 % Hugely higher market share.
+233%
0.06 %
Value
Value For Money
58.2 % 70.9 % Better value.
+22%
User Rating
UBM User Rating
57 % 59 % +4%
Price
Price (score)
$106 $100 Slightly cheaper.
+6%
Age
Newest
71 Months 35 Months Much more recent.
+51%
Capacity
Capacity
4TB 4TB
Hard Drive Rankings (Price vs Performance) August 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 i5-9400F $140Nvidia GTX 1660 $220Samsung 850 Evo 250GB $86
AMD Ryzen 5 3600 $198Nvidia GTX 1660-Ti $269Samsung 850 Evo 500GB $102
Intel Core i5-9600K $219AMD RX 580 $167Samsung 850 Pro 256GB $97
HDDRAMUSB
Seagate Barracuda 1TB (2016) $40Corsair Vengeance LPX DDR4 3000 C15 2x8GB $75SanDisk Extreme 64GB $88
WD Blue 1TB (2012) $42G.SKILL Trident Z DDR4 3200 C14 4x16GB $695SanDisk Extreme 32GB $48
Seagate Barracuda 3TB (2016) $80Corsair Vengeance LPX DDR4 3200 C16 2x8GB $80SanDisk Extreme 16GB $24
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