Real World Speed
Performance profile from 69,251 user samples
14,572 User Benchmarks
Best Bench: 95% 4.5TB free
Worst Bench: 55% 57GB free
Poor: 55% Great: 95%
SPEED RANK: 84th / 984
54,679 User Benchmarks
Best Bench: 108% 895GB free
Worst Bench: 72% 243GB free
Poor: 72% Great: 108%
SPEED RANK: 18th / 984
Effective Speed
Effective HDD Speed
77.4 % 92.6 % Faster effective speed.
Avg. Sequential Read Speed
141 MB/s 168 MB/s Faster read speed.
Avg. Sequential Write Speed
129 MB/s 155 MB/s Faster write speed.
4K Read
Avg. 4K Random Read Speed
0.58 MB/s 0.8 MB/s Much faster random read.
4K Write
Avg. 4K Random Write Speed
1.32 MB/s 1.52 MB/s Faster random write.
Avg. Sequential Mixed IO Speed
120 MB/s 135 MB/s Slightly faster mixed IO speed.
4K Mixed
Avg. 4K Random Mixed IO Speed
0.18 MB/s 0.27 MB/s Much faster random mixed IO.
Peak Sequential Read Speed
178 MB/s 197 MB/s Slightly faster peak read speed.
Peak Sequential Write Speed
163 MB/s 185 MB/s Slightly faster peak write speed.
4K Read
Peak 4K Random Read Speed
0.75 MB/s 1.03 MB/s Much faster peak random read.
4K Write
Peak 4K Random Write Speed
1.91 MB/s Slightly faster peak random write.
1.77 MB/s
Peak Sequential Mixed IO Speed
152 MB/s 166 MB/s Slightly faster peak mixed IO speed.
4K Mixed
Peak 4K Random Mixed IO Speed
0.27 MB/s 0.33 MB/s Faster peak random mixed IO.
Market Share
Based on 8,254,355 HDDs tested.
Market Share
Market Share (trailing 30 days)
0.2 % 2.3 % Insanely higher market share.
Value For Money
98.7 % Much better value.
63.2 %
User Rating
UBM User Rating
54 % 99 % Hugely more popular.
Price (score)
$90 $42 Much cheaper.
61 Months 18 Months Much more recent.

This is Seagate's most recent hard drive and their first 4TB consumer offering. With a rotational speed of just 5,900 RPM it's significantly slower than the 7,200 RPM Barracudas that it supersedes. The lower rotational speed results in approximately 10% slower sequential transfer speeds and longer access times which make this drive less suitable for use as a system drive. With peak 4k read/write speeds of 0.76/1.2 MB/s the 4TB HDD.15 lags the group leaders significantly. The HDD.15 is a far better candidate for use in a NAS (Network Attached Storage) where factors such as power consumption and cost per GB are more important than outright speeds. To conclude, the HDD.15 has a relatively disappointing small file 4K performance profile but it does offer a huge amount of storage at a very competitive price which makes it a good candidate for use in a NAS. [Aug '13 HDrivePro]


The 1TB Seagate Barracuda 2016 (ST1000DM010) has an impressive performance profile. With Sequential read/writes averaging 173 and 159 MBps respectively, the Barracuda can make short work of even moderately large backups. The small file (4K) performance profile is less impressive but still adequate with average read/writes coming in at 0.87 and 1.53 MBps respectively. For use as OS drives, rotational disks are quickly loosing market share to SSDs which offer orders of magnitude faster 4k read/write speeds. On the other hand cheap TLC based SSDs often have slower sustained write speeds than their rotational counterparts. Reasonably good overall performance can be achieved by using a TLC SSD to host the OS and a larger rotational drive such as the Barracuda for backups and media files. Larger capacity variants of this drive offer both better performance and better value for money. [Feb '17 HDrivePro]


Hard Drive Rankings (Price vs Performance) March 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]


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
  • - 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.
Intel Core i7-8700K $330Nvidia GTX 1070 $447Samsung 850 Evo 250GB $85
Intel Core i7-7700K $290Nvidia GTX 1060-6GB $335Samsung 850 Evo 500GB $148
Intel Core i5-8600K $235AMD RX 480 $400Samsung 850 Pro 256GB $160
Seagate Barracuda 1TB (2016) $42Corsair Vengeance LPX DDR4 3000 C15 2x8GB $170SanDisk Extreme 64GB $44
Seagate Barracuda 3TB (2016) $75G.SKILL Trident Z DDR4 3200 C14 4x16GB $931SanDisk Extreme 32GB $23
Seagate Barracuda 7200.14 1TB $51Corsair Vengeance LPX DDR4 3200 C16 2x8GB $205SanDisk Extreme 16GB $18
Today's hottest deals
User Guide  •  About  •  FAQs  •  @Email  •  Privacy  •  Developer Feedback