Average Bench: 67.3% (146th of 1015)

more Based on 5,527 user benchmarks.  Models: WDC WD2001FASS-00U0B0, WDC WD2001FASS-00W2B0, WDC WD2001FASS-00W2B, WDC WD2001FASS-00U0B, WDC WD20 01FASS-00W2B0, WDC WD20 01FASS-00U0B0, WD2001FASS-00U0, WDC WD20 01FASS-00W2B, WDC WD20 01FASS-00U0B, WDC WD2001FASS-0

Above average average bench

The WD WD2001FASS-00U0B0 2TB averaged 32.6% lower than the peak scores attained by the group leaders. This isn't a great result which indicates that there are much faster alternatives on the comparison list.


Avg. 4K Random Mixed IO Speed 0.93MB/s
Avg. 4K Random Write Speed 2.61MB/s

Above average consistency

The range of scores (95th - 5th percentile) for the WD WD2001FASS-00U0B0 2TB is 39.8%. This is a relatively wide range which indicates that the WD WD2001FASS-00U0B0 2TB performs inconsistently under varying real world conditions.


Avg. Sequential Mixed IO Speed 84MB/s
Avg. Sequential Write Speed 112MB/s

Average Bench

(Based on 5,527 samples)
Min Avg Max
68.3 Read 122 152
62.4 Write 112 141
52 Mixed 84 108
60.1 SusWrite 112 143
79.4% 108 MB/s
Min Avg Max
0.7 4K Read 1.1 1.4
1.5 4K Write 2.61 3.4
0.6 4K Mixed 0.93 1.1
197% 1.54 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest HDD (mainstream) averages a speed of 100%
987GB free
Firmware: 05.01D05
SusWrite @10s intervals: 118 118 119 120 120 119 MB/s
Read 117
Write 114
Mixed 95.4
SusWrite 119
82% 111 MB/s
4K Read 1.3
4K Write 2.3
4K Mixed 0.9
197% 1.5 MB/s
1.5TB free
Firmware: 01.00101
SusWrite @10s intervals: 107 115 114 113 115 114 MB/s
Read 111
Write 101
Mixed 87.3
SusWrite 113
76% 103 MB/s
4K Read 1
4K Write 3.3
4K Mixed 1
214% 1.77 MB/s
219GB free
Firmware: 05.01D05
SusWrite @10s intervals: 120 122 123 122 124 124 MB/s
Read 94.6
Write 78.8
Mixed 77.9
SusWrite 122
69% 93.4 MB/s
4K Read 0.8
4K Write 2.5
4K Mixed 0.8
168% 1.37 MB/s
219GB free
Firmware: 05.01D05
SusWrite @10s intervals: 121 123 122 122 122 122 MB/s
Read 84.9
Write 87.1
Mixed 69.8
SusWrite 122
67% 90.9 MB/s
4K Read 1.1
4K Write 2.1
4K Mixed 0.8
174% 1.33 MB/s
5,527 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 40,749,633 HDDs tested.

Typical WD2001FASS-00U0B0 2TB Builds (Compare 73,281 builds) See popular component choices, score breakdowns and rankings.
Gaming 104%
Desktop 94%
Nuclear submarine
Workstation 106%

Motherboard: Asus TUF GAMING X570-PLUS (WI-FI) - $169

EDIT WITH CUSTOM PC BUILDER Value: 71% - Very good Total price: $1,207

Popular WD2001FASS-00U0B0 2TB compatible motherboards:

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.
Hard Drive Rankings (Price vs Performance) September 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]


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.


1015 Drives (Compared) Thousands of user benchmarks compiled into one comparison list.

See how consistently different HDDs perform with varying real world conditions. The charts also illustrate overall performance, popularity and rank.

 Frequently Asked Questions

 Best User Rated

The Best.
Intel Core i5-11600K $270Nvidia RTX 3060-Ti $400Crucial MX500 250GB $45
Intel Core i5-11400F $260Nvidia RTX 3070 $500Samsung 860 Evo 250GB $52
Intel Core i7-11700K $380Nvidia GTX 1660S (Super) $240Samsung 850 Evo 120GB $183
Seagate Barracuda 1TB (2016) $40Corsair Vengeance LPX DDR4 3200 C16 2x8GB $74SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $35Corsair Vengeance LPX DDR4 3000 C15 2x8GB $77SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $649SanDisk Ultra Fit 32GB $16
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