WDWD121KRYZ
SeagateST4000DM005
Real World Speed
Performance profile from 31,742 user samples
751 User Benchmarks
Best Bench: 138% 11TB free
Worst Bench: 74% 624GB free
Poor: 74% Great: 138%
SPEED RANK: 1st / 1015
30,991 User Benchmarks
Best Bench: 105% 4TB free
Worst Bench: 53% 564GB free (System drive)
Poor: 53% Great: 105%
SPEED RANK: 58th / 1015
Effective Speed
Effective HDD Speed
113 % Much faster effective speed.
+35%
83.6 %
Read
Avg. Sequential Read Speed
196 MB/s Much faster read speed.
+33%
147 MB/s
Write
Avg. Sequential Write Speed
199 MB/s Much faster write speed.
+57%
127 MB/s
4K Read
Avg. 4K Random Read Speed
1.56 MB/s Hugely faster random read.
+136%
0.66 MB/s
4K Write
Avg. 4K Random Write Speed
5.3 MB/s Hugely faster random write.
+190%
1.83 MB/s
Mixed
Avg. Sequential Mixed IO Speed
95.3 MB/s Much faster mixed IO speed.
+47%
64.7 MB/s
4K Mixed
Avg. 4K Random Mixed IO Speed
1.31 MB/s Much faster random mixed IO.
+79%
0.73 MB/s
SusWrite
Avg. Sustained Write Speed
195 MB/s Much faster sustained write speed.
+35%
144 MB/s
Read
Peak Sequential Read Speed
242 MB/s Faster peak read speed.
+29%
188 MB/s
Write
Peak Sequential Write Speed
242 MB/s Much faster peak write speed.
+44%
168 MB/s
4K Read
Peak 4K Random Read Speed
2.16 MB/s Hugely faster peak random read.
+209%
0.7 MB/s
4K Write
Peak 4K Random Write Speed
6 MB/s Hugely faster peak random write.
+161%
2.3 MB/s
Mixed
Peak Sequential Mixed IO Speed
111 MB/s Much faster peak mixed IO speed.
+41%
78.7 MB/s
4K Mixed
Peak 4K Random Mixed IO Speed
1.6 MB/s Much faster peak random mixed IO.
+78%
0.9 MB/s
SusWrite
Peak Sequential Sustained Write 60s Average
242 MB/s Much faster peak sustained write speed.
+31%
185 MB/s
Market Share
Based on 39,709,044 HDDs tested.
Market Share
Market Share (trailing 30 days)
0.01 % 0.11 % Hugely higher market share.
+1,000%
Value
Value For Money
69.3 % Better value.
+18%
58.7 %
User Rating
UBM User Rating
53 % 57 % Slightly more popular.
+8%
Price
Price (score)
$390 $114 Much cheaper.
+71%
Age
Newest
43+ Months More recent.
+26%
58 Months
Capacity
Capacity
12TB 4TB
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big and fast  [Jul '20 Viper207]

MORE DETAILS

Hard Drive Rankings (Price vs Performance) July 2021 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.
  • - 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

The Best.
CPUGPUSSD
Intel Core i5-11400F $260Nvidia RTX 3070 $500Crucial MX500 250GB $45
Intel Core i5-11600K $270Nvidia RTX 3060-Ti $400Samsung 860 Evo 250GB $52
Intel Core i7-10700K $320Nvidia GTX 1660S (Super) $240Samsung 850 Evo 120GB $176
HDDRAMUSB
Seagate Barracuda 1TB (2016) $39Corsair Vengeance LPX DDR4 3200 C16 2x8GB $79SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $34Corsair Vengeance LPX DDR4 3000 C15 2x8GB $80SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $649SanDisk Ultra Fit 32GB $16
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