Average Bench: 82.3% (65th of 1015)

more Based on 6,661 user benchmarks.  Models: WDC WD40PURZ-85T, WD WD40PURZ-85TTDY0, WDC WD40 PURZ-85TTDY0, WDC WD40PURZ-74AKKY0, WDC WD40PURZ-85TTDY0, WDC WD40 PURZ-85AKKY0, WDC WD40PURZ-85GXCB0, WDC WD40PURZ-85AKKY0, WDC WD40PURZ-85A

Very good average bench

The WD Purple Surveillance 4TB (2017) averaged just 17.6% 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 0.95MB/s
Avg. 4K Random Write Speed 2.69MB/s

Poor consistency

The range of scores (95th - 5th percentile) for the WD Purple Surveillance 4TB (2017) is 60.8%. This is a particularly wide range which indicates that the WD Purple Surveillance 4TB (2017) performs inconsistently under varying real world conditions.

Weaknesses

Avg. Sequential Mixed IO Speed 72.2MB/s
Avg. Sequential Write Speed 139MB/s
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Average Bench

(Based on 6,661 samples)
Min Avg Max
80.8 Read 146 194
75.4 Write 139 185
46 Mixed 72.2 88.3
79.3 SusWrite 141 192
91.1% 125 MB/s
Min Avg Max
0.6 4K Read 0.91 1.6
1.4 4K Write 2.69 3.24
0.56 4K Mixed 0.95 1.1
193% 1.52 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest HDD (mainstream) averages a speed of 100%
3.5TB free
Firmware: 80.00A80
SusWrite @10s intervals: 176 178 180 180 180 180 MB/s
Read 188
Write 118
Mixed 85.5
SusWrite 179
104% 143 MB/s
4K Read 0.8
4K Write 2.7
4K Mixed 1
194% 1.5 MB/s
3TB free
Firmware: 80.00A80
SusWrite @10s intervals: 163 168 170 169 168 169 MB/s
Read 162
Write 162
Mixed 73.6
SusWrite 168
103% 141 MB/s
4K Read 1
4K Write 2.7
4K Mixed 1
203% 1.57 MB/s
3.5TB free
Firmware: 80.00A80
SusWrite @10s intervals: 92 166 166 167 167 166 MB/s
Read 162
Write 151
Mixed 74.7
SusWrite 154
99% 135 MB/s
4K Read 0.9
4K Write 3
4K Mixed 1.1
215% 1.67 MB/s
1.5TB free
Firmware: 80.00A80
SusWrite @10s intervals: 170 176 169 175 168 167 MB/s
Read 122
Write 114
Mixed 59.7
SusWrite 171
85% 117 MB/s
4K Read 0.9
4K Write 2.4
4K Mixed 1
193% 1.43 MB/s
3TB free
Firmware: 80.00A80
SusWrite @10s intervals: 106 101 102 100 104 101 MB/s
Read 175
Write 113
Mixed 76.8
SusWrite 102
86% 117 MB/s
4K Read 0.9
4K Write 1.4
4K Mixed 0.9
163% 1.07 MB/s
3TB free
Firmware: 80.00A80
SusWrite @10s intervals: 102 100 103 105 103 103 MB/s
Read 91.3
Write 98.1
Mixed 50.2
SusWrite 102
63% 85.5 MB/s
4K Read 0.6
4K Write 1.7
4K Mixed 0.7
134% 1 MB/s
53GB free
Firmware: 80.00A80
SusWrite @10s intervals: 85 87 87 91 88 90 MB/s
Read 79.3
Write 84.7
Mixed 54.5
SusWrite 88
56% 76.6 MB/s
4K Read 0.8
4K Write 2.5
4K Mixed 1
191% 1.43 MB/s
6,661 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 39,631,012 HDDs tested.

 Prices

EbayUS $9011 mins
AmazonUS $1044 mins
BHPhotoUS $10722 months
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Typical Purple Surveillance 4TB (2017) Builds (Compare 67,203 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 105%
UFO
Desktop
Desktop 94%
Nuclear submarine
Workstation
Workstation 107%
UFO

Motherboard: Asus TUF GAMING X570-PLUS (WI-FI) - $190

EDIT WITH CUSTOM PC BUILDER Value: 71% - Very good Total price: $1,197

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.
  • - 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) July 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]

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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 i5-11400F $239Nvidia RTX 3060-Ti $400Crucial MX500 250GB $45
Intel Core i5-11600K $270Nvidia RTX 3070 $500Samsung 860 Evo 250GB $52
Intel Core i7-10700K $299Nvidia GTX 1660S (Super) $240Samsung 850 Evo 120GB $78
HDDRAMUSB
Seagate Barracuda 1TB (2016) $45Corsair Vengeance LPX DDR4 3200 C16 2x8GB $79SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $34Corsair Vengeance LPX DDR4 3000 C15 2x8GB $85SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $649SanDisk Ultra Fit 32GB $16
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