Real World Speed
Performance profile from 15,061 user samples
4,468 User Benchmarks
Best Bench: 87% 411GB free
Worst Bench: 45% 1TB free
Poor: 45% Great: 87%
SPEED RANK: 108th / 966
10,593 User Benchmarks
Best Bench: 83% 4.5TB free
Worst Bench: 43% 1.5TB free
Poor: 43% Great: 83%
SPEED RANK: 134th / 966
Effective Speed
Effective HDD Speed
68.9 % Slightly faster effective speed.
64.9 % -6%
Avg. Sequential Read Speed
125 MB/s Slightly faster read speed.
117 MB/s -7%
Avg. Sequential Write Speed
115 MB/s Slightly faster write speed.
109 MB/s -6%
4K Read
Avg. 4K Random Read Speed
0.67 MB/s 0% 0.67 MB/s 0%
4K Write
Avg. 4K Random Write Speed
2.01 MB/s +4% 1.93 MB/s -4%
Avg. Sequential Mixed IO Speed
108 MB/s Slightly faster mixed IO speed.
101 MB/s -7%
4K Mixed
Avg. 4K Random Mixed IO Speed
0.23 MB/s +5% 0.22 MB/s -5%
Peak Sequential Read Speed
172 MB/s Slightly faster peak read speed.
152 MB/s -13%
Peak Sequential Write Speed
147 MB/s +4% 141 MB/s -4%
4K Read
Peak 4K Random Read Speed
0.9 MB/s -3% 0.93 MB/s +3%
4K Write
Peak 4K Random Write Speed
2.56 MB/s +2% 2.5 MB/s -2%
Peak Sequential Mixed IO Speed
139 MB/s +5% 133 MB/s -5%
4K Mixed
Peak 4K Random Mixed IO Speed
0.29 MB/s 0% 0.29 MB/s 0%
Market Share
Based on 2,794,389 HDDs tested.
Market Share
Market Share (trailing 30 days)
0.4 % -100% 0.8 % Hugely higher market share.
Value For Money
54.9 % -9% 60.1 % Slightly better value.
User Rating
UBM User Rating
56 % +2% 55 % -2%
Price (score)
$108 -14% $93 Slightly cheaper.
54 Months More recent.
69 Months -22%

With peak sequential read/write speeds of 140 and averages of 120 MB/s the 3TB WD Red is around 25% slower than the group leaders. If the Red is used in a NAS (Network Attached Storage), that won't make much difference because the vast majority of home networks still operate at Fast Ethernet (~10 MB/s), even users with faster Gigabit (~100 MB/s) networks will be limited by their network bandwidth before the drive. I could assume that any of our drives are for use in a NAS but that of course doesn't excuse sub-par performance because they could equally be used in a desktop. It's true that the power consumption (4.4W) on the Red is lower than average (6W) but the performance hit isn't justified. Even assuming continuous usage, those extra couple of watts for something like the Seagate Baracuda 7200.14 amount to a few pounds a year at most. At £133 this dive is both overpriced and offers sub-optimal performance. [Feb '14 HDrivePro]


Compared to the Seagate Barracuda 7200.14 3TB there are no tangible upsides to this drive. The ONLY benefit seems to be a 2W power saving whilst the drive is active. [Nov '12 HDrivePro]


Hard Drive Rankings (Price vs Performance) January 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
  • - 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


The Best.
Intel Core i7-6700K $330Nvidia GTX 1070 $376Samsung 850 Evo 250GB $98
Intel Core i5-6600K $220AMD RX 480 $190Samsung 850 Pro 256GB $120
Intel Core i7-4790K $339Nvidia GTX 1060-6GB $250Samsung 850 Evo 500GB $150
Seagate Barracuda 7200.14 1TB $45Corsair Vengeance LPX DDR4 3000 C15 2x8GB $103SanDisk Extreme 64GB $28
WD Black 6TB (2015) $270G.SKILL Trident Z DDR4 3200 C14 4x16GB $545SanDisk Extreme 32GB $23
WD Blue 1TB (2012) $50G.SKILL Trident Z DDR4 3200 C16 2x8GB $110SanDisk Extreme 16GB $16
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