Real World Speed
Performance profile from 16,680 user samples
4,019 User Benchmarks
Best Bench: 59% 1TB free
Worst Bench: 36% 108GB free
Poor: 36% Great: 59%
SPEED RANK: 368th / 984
12,661 User Benchmarks
Best Bench: 109% 2.5TB free
Worst Bench: 73% 1.5TB free
Poor: 73% Great: 109%
SPEED RANK: 11th / 984
Effective Speed
Effective HDD Speed
48.4 % 95.4 % Hugely faster effective speed.
Avg. Sequential Read Speed
85.1 MB/s 175 MB/s Hugely faster read speed.
Avg. Sequential Write Speed
83.6 MB/s 158 MB/s Hugely faster write speed.
4K Read
Avg. 4K Random Read Speed
0.55 MB/s 0.65 MB/s Faster random read.
4K Write
Avg. 4K Random Write Speed
0.93 MB/s 1.51 MB/s Much faster random write.
Avg. Sequential Mixed IO Speed
77.2 MB/s 154 MB/s Hugely faster mixed IO speed.
4K Mixed
Avg. 4K Random Mixed IO Speed
0.27 MB/s Faster random mixed IO.
0.21 MB/s
Peak Sequential Read Speed
104 MB/s 202 MB/s Hugely faster peak read speed.
Peak Sequential Write Speed
103 MB/s 186 MB/s Hugely faster peak write speed.
4K Read
Peak 4K Random Read Speed
0.76 MB/s 0.81 MB/s Slightly faster peak random read.
4K Write
Peak 4K Random Write Speed
1.3 MB/s 1.83 MB/s Much faster peak random write.
Peak Sequential Mixed IO Speed
99.3 MB/s 178 MB/s Much faster peak mixed IO speed.
4K Mixed
Peak 4K Random Mixed IO Speed
0.35 MB/s Much faster peak random mixed IO.
0.25 MB/s
Market Share
Based on 8,254,499 HDDs tested.
Market Share
Market Share (trailing 30 days)
0.08 % 0.36 % Hugely higher market share.
Value For Money
17.4 % 110 % Hugely better value.
User Rating
UBM User Rating
52 % 83 % Much more popular.
Price (score)
$40 Much cheaper.
94 Months 18 Months Hugely more recent.
500GB 3TB

The Momentus XT is a 7200 rpm low power Laptop SSHD (Solid State Hard Drive). The XT is one of the early SSHD models and at nearly four years of age it's now over the hill and struggles to keep up with newer drives. With peak sequential speeds in the region of 100 MB/s the Momentus is approximately 70% slower than the current group leaders. Most SSHDs offer relatively good small file 4K read and write performance but that isn't the case for the Momentus XT which only averages 0.6 MB/s in the random 4K tests. There are far better alternatives currently available for the same money. [Jan '14 HDrivePro]


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]


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
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