Real World Speed
Performance profile from 26,098 user samples
16,760 User Benchmarks
Best Bench: 104% 861GB free
Worst Bench: 62% 134GB free
Poor: 62% Great: 104%
SPEED RANK: 55th / 983
9,338 User Benchmarks
Best Bench: 112% 1.5TB free
Worst Bench: 80% 482GB free
Poor: 80% Great: 112%
SPEED RANK: 8th / 983
Effective Speed
Effective HDD Speed
83.8 % -18% 98.6 % Faster effective speed.
Avg. Sequential Read Speed
136 MB/s -33% 181 MB/s Much faster read speed.
Avg. Sequential Write Speed
155 MB/s -5% 163 MB/s Slightly faster write speed.
4K Read
Avg. 4K Random Read Speed
0.67 MB/s 0% 0.67 MB/s 0%
4K Write
Avg. 4K Random Write Speed
5.04 MB/s Hugely faster random write.
1.55 MB/s -225%
Avg. Sequential Mixed IO Speed
123 MB/s -28% 158 MB/s Faster mixed IO speed.
4K Mixed
Avg. 4K Random Mixed IO Speed
0.63 MB/s Hugely faster random mixed IO.
0.2 MB/s -215%
Peak Sequential Read Speed
188 MB/s -9% 205 MB/s Slightly faster peak read speed.
Peak Sequential Write Speed
190 MB/s +1% 189 MB/s -1%
4K Read
Peak 4K Random Read Speed
0.92 MB/s Faster peak random read.
0.8 MB/s -15%
4K Write
Peak 4K Random Write Speed
5.6 MB/s Hugely faster peak random write.
1.83 MB/s -206%
Peak Sequential Mixed IO Speed
157 MB/s -15% 181 MB/s Faster peak mixed IO speed.
4K Mixed
Peak 4K Random Mixed IO Speed
1.01 MB/s Hugely faster peak random mixed IO.
0.25 MB/s -304%
Market Share
Based on 4,678,620 HDDs tested.
Market Share
Market Share (trailing 30 days)
0.62 % -100% 1.24 % Hugely higher market share.
Value For Money
33.8 % -150% 84.5 % Hugely better value.
User Rating
UBM User Rating
61 % -20% 73 % More popular.
Price (score)
$71 -6% $67 Slightly cheaper.
47 Months -79% 10 Months Much more recent.

The ST1000DX001 is a Solid State Hard Drive (SSHD). There is 8GB of MLC NAND flash built into this model which helps facilitate better performance than a purely mechanical drive. The peak sequential read /write speeds of 190 MB/s are around 10% higher than average for a mechanical drive, but no where near typical SSD speeds. We have seen peak 4k write speeds as high as 5.72 MB/s, which is very impressive and to date the highest 4k read speed is 1.24 MB/s which is less impressive but still above average for a top end mechanical drive. The performance increases attributable to the NAND flash are primarily noticeable in the area of small file performance and the Seagate offers only marginally better sequential performance than other mechanical 1TB hard drives. Overall the ST1000DX001 is a very solid performer and bests the group average by 30%. The larger 2TB version (ST2000DX001) has similar performance but represents even better value for money. [Feb '14 HDrivePro]


Hard Drive Rankings (Price vs Performance) July 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

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The Best.
Intel Core i7-7700K $295Nvidia GTX 1070 $390Samsung 850 Evo 250GB $97
AMD Ryzen 7 1700 $268AMD RX 480 $220Samsung 850 Pro 256GB $120
Intel Core i5-7600K $235Nvidia GTX 1060-6GB $260Samsung 850 Evo 500GB $159
Seagate Barracuda 1TB (2016) $45Corsair Vengeance LPX DDR4 3000 C15 2x8GB $137SanDisk Extreme 64GB $33
Seagate Barracuda 3TB (2016) $83G.SKILL Trident Z DDR4 3200 C14 4x16GB $714SanDisk Extreme 32GB $23
Seagate Barracuda 7200.14 1TB $44HyperX Fury DDR4 2133 C14 2x8GB $140SanDisk Ultra Fit 32GB $13
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