Average Bench: 103% (3rd of 1002)

Based on 186 user benchmarks.  Models: WDC WD6002FFWX-68TZ4N0, WDC WD6002FFWX-6, WDC WD60 02FFWX-68TZ4N0, WDC WD6002FFWX-68TZ4

Outstanding average bench

The WD Red Pro 6TB (2015) averaged 2.6% higher than the peak scores attained by the group leaders. This is an excellent result which ranks the WD Red Pro 6TB (2015) near the top of the comparison list.


Avg. 4K Random Write Speed 3.65MB/s
Avg. 4K Random Mixed IO Speed 0.51MB/s

Average consistency

The range of scores (95th - 5th percentile) for the WD Red Pro 6TB (2015) is 42.1%. This is a relatively wide range which indicates that the WD Red Pro 6TB (2015) performs inconsistently under varying real world conditions.


Avg. 4K Random Read Speed 0.88MB/s
Avg. Sequential Write Speed 175MB/s

Average Bench

(Based on 186 samples)
Min Avg Max
127 Read 182 212
127 Write 175 207
107 Mixed 163 193
130% 173 MB/s
Min Avg Max
0.54 4K Read 0.88 1.04
2.21 4K Write 3.65 5
0.34 4K Mixed 0.51 0.68
161% 1.68 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest HDD (mainstream) averages a speed of 100%
3.5TB free
Firmware: 83.H0A83 Max speed: SATA 3.0 600 MB/s
Read 213
Write 179
Mixed 182
144% 191 MB/s
4K Read 0.85
4K Write 3.32
4K Mixed 0.39
140% 1.52 MB/s
4TB free
Firmware: 83.H0A83 Max speed: SATA 3.0 600 MB/s
Read 205
Write 180
Mixed 190
145% 192 MB/s
4K Read 0.95
4K Write 3.11
4K Mixed 0.42
144% 1.49 MB/s
5TB free
Firmware: 83.H0A83 Max speed: SATA 3.0 600 MB/s
Read 199
Write 175
Mixed 171
136% 181 MB/s
4K Read 0.94
4K Write 3.28
4K Mixed 0.52
158% 1.58 MB/s
4TB free
Firmware: 83.H0A83 Max speed: SATA 3.0 600 MB/s
Read 182
Write 179
Mixed 170
133% 177 MB/s
4K Read 1
4K Write 3.66
4K Mixed 0.44
159% 1.7 MB/s
186 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 8,823,623 HDDs tested.


AmazonUS $2308 mins
BHPhotoUS $2308 hrs
EbayUS $23319 mins
NeweggUS $2339 hrs
Send price feedback
Typical Red Pro 6TB (2015) Builds (Compare 791 builds) See popular component choices, score breakdowns and rankings.
Gaming 105%
Desktop 87%
Aircraft carrier
Workstation 68%
Battle cruiser

Motherboard: Gigabyte GA-Z170X-UD5-CF

EDIT WITH CUSTOM PC BUILDER Value: 91% - Outstanding Total price: $1,221

Popular Red Pro 6TB (2015) 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 (UBM).
  • - CPU tests include: integer, floating and string.
  • - GPU tests include: six 3D game simulations.
  • - Drive tests include: read, write and mixed IO.
  • - Checks include: 4k Align, NCQ, TRIM, SATA, USB & S.M.A.R.T.
  • - 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 highest voted in class.
  • - Find the best upgrades.
  • - Share your opinion by voting.
Hard Drive Rankings (Price vs Performance) April 2018 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.
  • Fastest effective speed - Real World Speed measures performance for typical consumers.
  • Best value for money - Value for money is based on real world performance, price and capacity.


1002 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 i7-8700K $330Nvidia GTX 1070 $447Samsung 850 Evo 250GB $90
Intel Core i7-7700K $290Nvidia GTX 1060-6GB $290Samsung 850 Evo 500GB $137
AMD Ryzen 5 1600 $176AMD RX 480 $350Samsung 850 Pro 256GB $163
Seagate Barracuda 1TB (2016) $44Corsair Vengeance LPX DDR4 3000 C15 2x8GB $183SanDisk Extreme 64GB $70
Seagate Barracuda 3TB (2016) $75G.SKILL Trident Z DDR4 3200 C14 4x16GB $957SanDisk Extreme 32GB $30
Seagate Barracuda 2TB (2016) $60Corsair Vengeance LPX DDR4 3200 C16 2x8GB $193SanDisk Extreme 16GB $18
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