Average Bench: 112% (1st of 1015)

Based on 475 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 12.2% 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 1.31MB/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 66%. 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 94.9MB/s
Avg. Sustained Write Speed 194MB/s

Average Bench

(Based on 475 samples)
Min Avg Max
113 Read 196 245
122 Write 199 245
61.3 Mixed 94.9 111
120 SusWrite 194 243
125% 171 MB/s
Min Avg Max
1.09 4K Read 1.53 2.2
4.2 4K Write 5.29 6.1
1 4K Mixed 1.31 1.6
307% 2.71 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest HDD (mainstream) averages a speed of 100%
8.5TB free
Firmware: 01.01H01
SusWrite @10s intervals: 225 221 223 226 222 230 MB/s
Read 216
Write 208
Mixed 99
SusWrite 224
136% 187 MB/s
4K Read 1.6
4K Write 5.3
4K Mixed 1.3
309% 2.73 MB/s
7TB free
Firmware: 01.01H01
SusWrite @10s intervals: 160 213 215 221 221 223 MB/s
Read 226
Write 220
Mixed 104
SusWrite 209
138% 190 MB/s
4K Read 1.4
4K Write 4.8
4K Mixed 1.7
336% 2.63 MB/s
3TB free
Firmware: 01.01H01
SusWrite @10s intervals: 163 175 176 182 178 172 MB/s
Read 173
Write 149
Mixed 57.9
SusWrite 174
101% 139 MB/s
4K Read 1.2
4K Write 5.9
4K Mixed 0.5
215% 2.53 MB/s
100GB free
Firmware: 01.0
SusWrite @10s intervals: 116 127 124 123 122 111 MB/s
Read 114
Write 101
Mixed 50.2
SusWrite 120
70% 96.6 MB/s
4K Read 0.9
4K Write 6
4K Mixed 1.5
315% 2.8 MB/s
475 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 31,724,093 HDDs tested.


EbayUS $3756 mins
AmazonUS $38426 days
BHPhotoUS $46914 months
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Typical Gold 12TB (2017) Builds (Compare 29,029 builds) See popular component choices, score breakdowns and rankings.
Gaming 101%
Desktop 94%
Nuclear submarine
Workstation 103%

Motherboard: Asus TUF GAMING X570-PLUS (WI-FI) - $161

EDIT WITH CUSTOM PC BUILDER Value: 68% - Good Total price: $1,107

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) October 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.


3 months ago.

big and fast


8 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.


7 months ago.

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


10 months ago.



8 days 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 i5-9600K $199Nvidia GTX 1660S (Super) $230Crucial MX500 250GB $45
Intel Core i5-9400F $140Nvidia RTX 3080 $700Samsung 850 Evo 120GB $78
Intel Core i5-10600K $260Nvidia RTX 2070S (Super) $510Samsung 860 Evo 250GB $44
Seagate Barracuda 1TB (2016) $43Corsair Vengeance LPX DDR4 3200 C16 2x8GB $63SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $32Corsair Vengeance LPX DDR4 3000 C15 2x8GB $69SanDisk Extreme 32GB $28
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $548SanDisk Extreme 16GB $28
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