Average Bench: 82.1% (71st of 1015)

Based on 4,190 user benchmarks.  Models: WDC WD40PURZ-85T, WD WD40PURZ-85TTDY0, WDC WD40 PURZ-85TTDY0, WDC WD40PURZ-85TTDY0, WDC WD40PURZ-85AKKY0

Very good average bench

The WD Purple Surveillance 4TB (2017) averaged just 17.9% lower than the peak scores attained by the group leaders. This is an excellent result which ranks the WD Purple Surveillance 4TB (2017) near the top of the comparison list.

Strengths

Avg. 4K Random Mixed IO Speed 0.99MB/s
Avg. 4K Random Write Speed 2.7MB/s

Below average consistency

The range of scores (95th - 5th percentile) for the WD Purple Surveillance 4TB (2017) is 53.6%. This is a relatively wide range which indicates that the WD Purple Surveillance 4TB (2017) performs inconsistently under varying real world conditions.

Weaknesses

Avg. Sequential Mixed IO Speed 72.1MB/s
Avg. Sequential Write Speed 140MB/s
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Average Bench

(Based on 4,190 samples)
Min Avg Max
87.5 Read 144 181
87.8 Write 140 174
50.1 Mixed 72.1 85.8
80.9 SusWrite 142 178
91% 124 MB/s
Min Avg Max
0.6 4K Read 0.86 1
2.08 4K Write 2.7 3.1
0.7 4K Mixed 0.99 1.1
196% 1.52 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest HDD (mainstream) averages a speed of 100%
3TB free
Firmware: 80.00A80
SusWrite @10s intervals: 172 170 173 171 173 168 MB/s
Read 170
Write 157
Mixed 82.2
SusWrite 171
106% 145 MB/s
4K Read 0.8
4K Write 2.8
4K Mixed 1.1
207% 1.57 MB/s
3.5TB free
Firmware: 80.00A80
SusWrite @10s intervals: 168 172 174 173 175 172 MB/s
Read 165
Write 148
Mixed 86
SusWrite 172
105% 143 MB/s
4K Read 0.9
4K Write 2.9
4K Mixed 1.1
213% 1.63 MB/s
2TB free
Firmware: 80.00A80
SusWrite @10s intervals: 145 150 148 150 149 147 MB/s
Read 142
Write 146
Mixed 75.3
SusWrite 148
94% 128 MB/s
4K Read 0.9
4K Write 2.6
4K Mixed 0.8
174% 1.43 MB/s
3TB free
Firmware: 80.00A80
SusWrite @10s intervals: 135 141 142 141 141 142 MB/s
Read 129
Write 99.7
Mixed 66.3
SusWrite 140
80% 109 MB/s
4K Read 0.9
4K Write 2.8
4K Mixed 1
200% 1.57 MB/s
841GB free
Firmware: 80.00A80
SusWrite @10s intervals: 126 118 129 129 132 129 MB/s
Read 100
Write 82.7
Mixed 24.8
SusWrite 127
60% 83.6 MB/s
4K Read 0.9
4K Write 0.5
4K Mixed 0.4
91% 0.6 MB/s
4,190 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 31,723,434 HDDs tested.

 Prices

AmazonUS $983 mins
EbayUS $9810 mins
BHPhotoUS $10713 months
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Typical Purple Surveillance 4TB (2017) Builds (Compare 46,523 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 96%
Nuclear submarine
Desktop
Desktop 88%
Aircraft carrier
Workstation
Workstation 91%
Nuclear submarine

Motherboard: Asus ROG STRIX B450-F GAMING - $121

EDIT WITH CUSTOM PC BUILDER Value: 63% - Good Total price: $981

Popular Purple Surveillance 4TB (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]

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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.

 Comments

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.
CPUGPUSSD
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
HDDRAMUSB
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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