Real World Speed
Performance profile from 7,620 user samples
2,055 User Benchmarks
Best Bench: 82% 2TB free
Worst Bench: 46% 2TB free
Poor: 46% Great: 82%
SPEED RANK: 144th / 984
5,565 User Benchmarks
Best Bench: 111% 2.5TB free
Worst Bench: 77% 2.5TB free
Poor: 77% Great: 111%
SPEED RANK: 10th / 984
Effective Speed
Effective HDD Speed
66 % -47% 97.2 % Much faster effective speed.
+47%
Read
Avg. Sequential Read Speed
113 MB/s -58% 178 MB/s Much faster read speed.
+58%
Write
Avg. Sequential Write Speed
117 MB/s -38% 161 MB/s Much faster write speed.
+38%
4K Read
Avg. 4K Random Read Speed
0.54 MB/s -28% 0.69 MB/s Faster random read.
+28%
4K Write
Avg. 4K Random Write Speed
1.91 MB/s Faster random write.
+23%
1.55 MB/s -23%
Mixed
Avg. Sequential Mixed IO Speed
106 MB/s -47% 156 MB/s Much faster mixed IO speed.
+47%
4K Mixed
Avg. 4K Random Mixed IO Speed
0.21 MB/s 0% 0.21 MB/s 0%
Read
Peak Sequential Read Speed
141 MB/s -44% 203 MB/s Much faster peak read speed.
+44%
Write
Peak Sequential Write Speed
148 MB/s -28% 189 MB/s Faster peak write speed.
+28%
4K Read
Peak 4K Random Read Speed
0.78 MB/s -4% 0.81 MB/s +4%
4K Write
Peak 4K Random Write Speed
2.48 MB/s Much faster peak random write.
+35%
1.84 MB/s -35%
Mixed
Peak Sequential Mixed IO Speed
136 MB/s -32% 180 MB/s Much faster peak mixed IO speed.
+32%
4K Mixed
Peak 4K Random Mixed IO Speed
0.27 MB/s Slightly faster peak random mixed IO.
+8%
0.25 MB/s -8%
Market Share
Based on 5,798,287 HDDs tested.
Market Share
Market Share (trailing 30 days)
0.05 % -780% 0.44 % Hugely higher market share.
+780%
Value
Value For Money
49.2 % -127% 112 % Hugely better value.
+127%
User Rating
UBM User Rating
56 % -46% 82 % Much more popular.
+46%
Price
Price (score)
$77 -3% $75 +3%
Age
Newest
39 Months -67% 13 Months Much more recent.
+67%
Capacity
Capacity
2TB 3TB
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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]

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The new 3TB Seagate Barracuda 2016 (ST3000DM008) replaces its hugely successful predecessor, the 3TB Barracuda 7200.14 2011 (ST3000DM001). Comparing performance between the two models shows that the newer drive has 12% faster sequential speeds, comparable 4K speeds, improved mixed sequential speed and reduced mixed 4K speed. Overall, the effective speed is 12% faster on the 2016 model. Since there is normally little price difference between the two models the 2016 version is the clear winner especially for use as a backup drive with its impressive sequential read and write speeds of nearly 200 MBps. See the current value leaders here[Feb '17 HDrivePro]

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Hard Drive Rankings (Price vs Performance) October 2017 HDD Rankings.

Welcome to our consumer Hard Drive comparison. We calculate effective speed which measures performance for typical consumers. Effective speed is adjusted by cost per GB to yield value for money. Calculated values don't always tell the whole picture so we check them against thousands of individual user ratings. The customizable table below combines these factors and more to bring you the definitive list of top HDDs. Share your opinion by voting. [HDrivePro]

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 i7-7700K $299Nvidia GTX 1070 $386Samsung 850 Evo 250GB $95
AMD Ryzen 7 1700 $280AMD RX 480 $508Samsung 850 Pro 256GB $126
Intel Core i5-7600K $230Nvidia GTX 1060-6GB $265Samsung 850 Evo 500GB $140
HDDRAMUSB
Seagate Barracuda 1TB (2016) $45Corsair Vengeance LPX DDR4 3000 C15 2x8GB $158SanDisk Extreme 64GB $33
Seagate Barracuda 3TB (2016) $75G.SKILL Trident Z DDR4 3200 C14 4x16GB $920SanDisk Extreme 32GB $22
Seagate Barracuda 2TB (2016) $67Corsair Vengeance LPX DDR4 3200 C16 2x8GB $180SanDisk Ultra Fit 32GB $13
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