Average Bench: 113% (1st of 1015)

more Based on 816 user benchmarks.  Models: WDC WD121KRYZ-01, WDC WD121KRYZ-01W0RB1, WDC WD121KRYZ-01W0RB0, WDC WD12 1KRYZ-01W0RB, WDC WD12 1KRYZ-01W0RB0, WDC WD121KRYZ-01W0RB

Outstanding average bench

The WD Gold 12TB (2017) averaged 12.8% higher than the peak scores attained by the group leaders. This is an excellent result which ranks the WD Gold 12TB (2017) near the top of the comparison list.


Avg. 4K Random Mixed IO Speed 1.3MB/s
Avg. 4K Random Write Speed 5.29MB/s

Poor consistency

The range of scores (95th - 5th percentile) for the WD Gold 12TB (2017) is 62.3%. This is a particularly wide range which indicates that the WD Gold 12TB (2017) performs inconsistently under varying real world conditions.


Avg. Sequential Mixed IO Speed 96.1MB/s
Avg. Sustained Write Speed 195MB/s

Average Bench

(Based on 816 samples)
Min Avg Max
123 Read 197 241
130 Write 199 241
69 Mixed 96.1 113
116 SusWrite 195 242
126% 172 MB/s
Min Avg Max
1.2 4K Read 1.57 2.6
4.2 4K Write 5.29 6
1.1 4K Mixed 1.3 1.6
307% 2.72 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest HDD (mainstream) averages a speed of 100%
6TB free
Firmware: 01.01H01
SusWrite @10s intervals: 247 244 241 243 246 250 MB/s
Read 208
Write 215
Mixed 97.2
SusWrite 245
140% 191 MB/s
4K Read 1.4
4K Write 5.6
4K Mixed 1.5
329% 2.83 MB/s
10TB free
Firmware: 01.01H01
SusWrite @10s intervals: 186 190 190 196 197 188 MB/s
Read 183
Write 175
Mixed 96.7
SusWrite 191
118% 162 MB/s
4K Read 1.5
4K Write 5.5
4K Mixed 1.2
298% 2.73 MB/s
1.5TB free
Firmware: 1H01
SusWrite @10s intervals: 133 145 147 148 152 145 MB/s
Read 211
Write 212
Mixed 112
SusWrite 145
125% 170 MB/s
4K Read 2.6
4K Write 5.8
4K Mixed 1.2
349% 3.2 MB/s
3TB free
Firmware: 01.0
SusWrite @10s intervals: 179 174 178 170 178 180 MB/s
Read 179
Write 184
Mixed 106
SusWrite 177
118% 162 MB/s
4K Read 2.1
4K Write 5.2
4K Mixed 1.6
362% 2.97 MB/s
816 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 40,750,488 HDDs tested.


EbayUS $39012 mins
AmazonUS $39412 days
BHPhotoUS $4692 years
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Typical Gold 12TB (2017) Builds (Compare 19,005 builds) See popular component choices, score breakdowns and rankings.
Gaming 177%
Desktop 95%
Nuclear submarine
Workstation 204%

Motherboard: Gigabyte X570 AORUS MASTER - $350

EDIT WITH CUSTOM PC BUILDER Value: 74% - Very good Total price: $1,653

Popular Gold 12TB (2017) 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.


Added n/a ago.


14 months ago.

big and fast


19 months ago.

The fastest and highest capacity HDD in the market currently. Liked that naming scheme but most users aren't going to see advantages of very high capacity HDD as this HDD is intended for storing huge amount of data and is very pricey.


18 months ago.

The best HD, but for specific use only because it is too expensive.


21 months ago.



11 months ago.

And now in an 18TB version for under $600.

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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