Average Bench: 112% (1st of 1015)

Based on 409 user benchmarks.  Models: WDC WD121KRYZ-01, WDC WD121KRYZ-01W0RB0, WDC WD12 1KRYZ-01W0RB, WDC WD12 1KRYZ-01W0RB0, WDC WD121KRYZ-01W0RB

Outstanding average bench

The WD Gold 12TB (2017) averaged 11.5% 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 5.3MB/s

Poor consistency

The range of scores (95th - 5th percentile) for the WD Gold 12TB (2017) is 63.4%. 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 94.4MB/s
Avg. Sustained Write Speed 194MB/s

Average Bench

(Based on 409 samples)
Min Avg Max
112 Read 194 245
122 Write 198 245
62.2 Mixed 94.4 110
121 SusWrite 194 243
124% 170 MB/s
Min Avg Max
0.9 4K Read 1.49 1.76
4.3 4K Write 5.3 6.1
1 4K Mixed 1.3 1.6
305% 2.7 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest HDD (mainstream) averages a speed of 100%
9.5TB free
Firmware: 01.01H01
SusWrite @10s intervals: 234 246 234 241 246 242 MB/s
Read 234
Write 245
Mixed 102
SusWrite 240
150% 205 MB/s
4K Read 1.5
4K Write 5.1
4K Mixed 1.2
290% 2.6 MB/s
4.5TB free
Firmware: 01.01H01
SusWrite @10s intervals: 180 186 186 189 185 185 MB/s
Read 158
Write 172
Mixed 96.9
SusWrite 185
112% 153 MB/s
4K Read 1.4
4K Write 5.5
4K Mixed 1.1
282% 2.67 MB/s
1TB free
Firmware: 01.01H01
SusWrite @10s intervals: 177 172 176 175 175 177 MB/s
Read 128
Write 130
Mixed 84.1
SusWrite 175
95% 129 MB/s
4K Read 1.4
4K Write 5.4
4K Mixed 1.5
325% 2.77 MB/s
2.5TB free
Firmware: 1H01
SusWrite @10s intervals: 137 135 136 143 142 135 MB/s
Read 131
Write 134
Mixed 86
SusWrite 138
90% 122 MB/s
4K Read 2
4K Write 4.9
4K Mixed 1.8
374% 2.9 MB/s
409 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 29,524,186 HDDs tested.


EbayUS $3757 mins
AmazonUS $39916 days
BHPhotoUS $46911 months
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Typical Gold 12TB (2017) Builds (Compare 357 builds) See popular component choices, score breakdowns and rankings.
Gaming 157%
Desktop 96%
Nuclear submarine
Workstation 180%

Motherboard: Asrock X570 Phantom Gaming X

EDIT WITH CUSTOM PC BUILDER Value: 47% - Average Total price: $1,930

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.
  • - 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.
Hard Drive Rankings (Price vs Performance) August 2020 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.


23 days ago.

big and fast


5 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.


5 months ago.

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


8 months ago.


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 i5-9600K $195Nvidia GTX 1660S (Super) $230Crucial MX500 250GB $46
Intel Core i5-9400F $156Nvidia GTX 1650S (Super) $170Samsung 850 Evo 120GB $78
Intel Core i7-9700K $335Nvidia RTX 2070S (Super) $510Samsung 860 Evo 250GB $50
Seagate Barracuda 1TB (2016) $42Corsair Vengeance LPX DDR4 3200 C16 2x8GB $60SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $34Corsair Vengeance LPX DDR4 3000 C15 2x8GB $69SanDisk Extreme 32GB $46
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $681SanDisk Extreme 16GB $24
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