Real World Speed
Performance profile from 9,437 user samples
2,941 User Benchmarks
Best Bench: 83% 2.5TB free
Worst Bench: 43% 74GB free
Poor: 43% Great: 83%
SPEED RANK: 161st / 1002
6,496 User Benchmarks
Best Bench: 101% 6TB free
Worst Bench: 57% 80GB free
Poor: 57% Great: 101%
SPEED RANK: 62nd / 1002
Effective Speed
Effective HDD Speed
65.4 % 84.3 % Faster effective speed.
+29%
Read
Avg. Sequential Read Speed
112 MB/s 151 MB/s Much faster read speed.
+35%
Write
Avg. Sequential Write Speed
116 MB/s 143 MB/s Faster write speed.
+23%
4K Read
Avg. 4K Random Read Speed
0.52 MB/s 0.6 MB/s Faster random read.
+15%
4K Write
Avg. 4K Random Write Speed
1.92 MB/s Slightly faster random write.
+10%
1.75 MB/s
Mixed
Avg. Sequential Mixed IO Speed
107 MB/s 122 MB/s Slightly faster mixed IO speed.
+14%
4K Mixed
Avg. 4K Random Mixed IO Speed
0.21 MB/s 0.24 MB/s Slightly faster random mixed IO.
+14%
Read
Peak Sequential Read Speed
142 MB/s 184 MB/s Faster peak read speed.
+30%
Write
Peak Sequential Write Speed
150 MB/s 178 MB/s Faster peak write speed.
+19%
4K Read
Peak 4K Random Read Speed
0.79 MB/s Slightly faster peak random read.
+7%
0.74 MB/s
4K Write
Peak 4K Random Write Speed
2.5 MB/s Faster peak random write.
+17%
2.14 MB/s
Mixed
Peak Sequential Mixed IO Speed
135 MB/s 152 MB/s Slightly faster peak mixed IO speed.
+13%
4K Mixed
Peak 4K Random Mixed IO Speed
0.27 MB/s 0.29 MB/s Slightly faster peak random mixed IO.
+7%
Market Share
Based on 9,282,091 HDDs tested.
Market Share
Market Share (trailing 30 days)
0.06 % 0.16 % Hugely higher market share.
+167%
Value
Value For Money
78.2 % 114 % Much better value.
+46%
User Rating
UBM User Rating
57 % 72 % More popular.
+26%
Price
Price (score)
$48 Much cheaper.
+44%
$85
Age
Newest
46 Months 20 Months Much more recent.
+57%
Capacity
Capacity
2TB 4TB
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The WD Purple is a surveillance drive with low power consumption and a design that's optimized for 24x7 operation. There is actually little beyond marketing that separates the Purple from the Red and Green drives. They all share almost identical hardware. The thing that does differentiate the Purple drives is their firmware which supports AllFrame, a surveillance specific feature. Allframe handles the cache in a way that is optimized for video streams. The AllFrame technology however is only enabled when used in conjunction with a supported host controller, most of which are only found in dedicated NVR (Network Video Recording) devices. As a result there is no benefit in using this drive in a HTPC to record video streams, because the surveillance specific functions won't be enabled. In terms of effective speed the Purple lags the new Red and Green drives by around 26%. [Oct '14 HDrivePro]

MORE DETAILS

Hard Drive Rankings (Price vs Performance) May 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]

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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.
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.

 Frequently Asked Questions

 Best User Rated

The Best.
CPUGPUSSD
Intel Core i7-8700K $320Nvidia GTX 1070 $447Samsung 850 Evo 250GB $88
AMD Ryzen 5 1600 $175Nvidia GTX 1060-6GB $280Samsung 850 Evo 500GB $139
Intel Core i7-7700K $285AMD RX 480 $300Samsung 850 Pro 256GB $163
HDDRAMUSB
Seagate Barracuda 1TB (2016) $44Corsair Vengeance LPX DDR4 3000 C15 2x8GB $180SanDisk Extreme 64GB $35
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $961SanDisk Extreme 32GB $30
Seagate Barracuda 2TB (2016) $60HyperX Fury DDR4 2133 C14 2x8GB $226SanDisk Extreme 16GB $20
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