Average Bench: 84.3% (52nd of 1015)

more Based on 8,846 user benchmarks.  Models: WDC WD40PURZ-85T, WD WD40PURZ-85TTDY0, WDC WD40PURZ-85TTDY1, WDC WD40PURZ-74AKKY0, WDC WD40PURZ-85TTDY0, WDC WD40 PURZ-85AKKY0, WDC WD40PURZ-85AKKY0, WD40PURZ-85TTDY0, WDC WD40PURZ-69N96Y0, WDC WD40PURZ-85U8XY0641, WDC WD40 PURZ-85TTDY0, WDC WD40PURZ-85GXCB0, WDC WD40PURZ-80TTDY0, WDC WD40PURZ-85A, WDC WD40 PURZ-74AKKY0

Very good average bench

The WD Purple Surveillance 4TB (2017) averaged just 15.6% 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 2.85MB/s

Poor consistency

The range of scores (95th - 5th percentile) for the WD Purple Surveillance 4TB (2017) is 61.5%. 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 72.7MB/s
Avg. Sequential Write Speed 141MB/s
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Average Bench

(Based on 8,846 samples)
Min Avg Max
85.1 Read 147 202
84.6 Write 141 184
48.9 Mixed 72.7 89
85.7 SusWrite 146 195
92.8% 127 MB/s
Min Avg Max
0.68 4K Read 1.14 2.4
1.77 4K Write 2.85 4.1
0.58 4K Mixed 0.95 1.1
206% 1.64 MB/s
User Benchmarks BenchSequentialRandom 4kDeep queue 4k
The fastest HDD (mainstream) averages a speed of 100%
3TB free
Firmware: 80.00B80
SusWrite @10s intervals: 178 179 180 175 182 176 MB/s
Read 174
Write 178
Mixed 76.7
SusWrite 178
111% 152 MB/s
4K Read 2.9
4K Write 4
4K Mixed 1
306% 2.63 MB/s
2TB free
Firmware: 80.00B80
SusWrite @10s intervals: 183 184 186 185 187 185 MB/s
Read 156
Write 180
Mixed 83.5
SusWrite 185
110% 151 MB/s
4K Read 2.1
4K Write 3.6
4K Mixed 1
265% 2.23 MB/s
3TB free
Firmware: 80.00A80
SusWrite @10s intervals: 147 150 148 146 148 146 MB/s
Read 159
Write 156
Mixed 81.7
SusWrite 148
100% 136 MB/s
4K Read 1
4K Write 2.7
4K Mixed 1
203% 1.57 MB/s
3TB free (System drive)
Firmware: 80.00A80
SusWrite @10s intervals: 62 111 115 90 118 137 MB/s
Read 152
Write 155
Mixed 71.1
SusWrite 105
88% 121 MB/s
4K Read 0.8
4K Write 2.6
4K Mixed 0.9
182% 1.43 MB/s
720GB free
Firmware: 80.00A80
SusWrite @10s intervals: 113 115 114 115 115 113 MB/s
Read 98.7
Write 107
Mixed 64.8
SusWrite 114
71% 96.1 MB/s
4K Read 0.7
4K Write 3.1
4K Mixed 0.9
187% 1.57 MB/s
202GB free
Firmware: 80.00A80
SusWrite @10s intervals: 105 105 105 105 107 106 MB/s
Read 104
Write 101
Mixed 55.7
SusWrite 106
67% 91.5 MB/s
4K Read 0.8
4K Write 2.8
4K Mixed 1
196% 1.53 MB/s
8,846 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 53,332,784 HDDs tested

 Prices

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Typical Purple Surveillance 4TB (2017) Builds (Compare 2,146 builds) See popular component choices, score breakdowns and rankings
Gaming
Gaming 23%
Surfboard
Desktop
Desktop 72%
Battleship
Workstation
Workstation 23%
Surfboard

System: HP Z600 Workstation

EDIT WITH CUSTOM PC BUILDER Value: 87% - Excellent Total price: $87

Popular Purple Surveillance 4TB (2017) systems:

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  • - CPU tests include: integer, floating and string
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Hard Drive Rankings (Price vs Performance) April 2024 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 i5-13600K $269Nvidia RTX 4060 $295Crucial MX500 250GB $40
Intel Core i5-12400F $133Nvidia RTX 4060-Ti $385Samsung 850 Evo 120GB $80
Intel Core i5-12600K $178Nvidia RTX 4070 $539Samsung 860 Evo 250GB $52
HDDRAMUSB
Seagate Barracuda 1TB (2016) $39Corsair Vengeance LPX DDR4 3200 C16 2x8GB $45SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $37Corsair Vengeance LPX DDR4 3000 C15 2x8GB $43SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $51G.SKILL Trident Z DDR4 3200 C14 4x16GB $351SanDisk Ultra Fit 32GB $16
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