Real World Speed
Performance profile from 31,366 user samples
16,459 User Benchmarks
Best Bench: 93% 1.5TB free
Worst Bench: 55% 899GB free
Poor: 55% Great: 93%
SPEED RANK: 102nd / 1002
14,907 User Benchmarks
Best Bench: 109% 3TB free
Worst Bench: 72% 4TB free
Poor: 72% Great: 109%
SPEED RANK: 13th / 1002
Effective Speed
Effective HDD Speed
75.7 % 95.2 % Faster effective speed.
+26%
Read
Avg. Sequential Read Speed
138 MB/s 174 MB/s Faster read speed.
+26%
Write
Avg. Sequential Write Speed
126 MB/s 158 MB/s Faster write speed.
+25%
4K Read
Avg. 4K Random Read Speed
0.57 MB/s 0.65 MB/s Slightly faster random read.
+14%
4K Write
Avg. 4K Random Write Speed
1.31 MB/s 1.52 MB/s Faster random write.
+16%
Mixed
Avg. Sequential Mixed IO Speed
119 MB/s 155 MB/s Much faster mixed IO speed.
+30%
4K Mixed
Avg. 4K Random Mixed IO Speed
0.18 MB/s 0.21 MB/s Faster random mixed IO.
+17%
Read
Peak Sequential Read Speed
172 MB/s 199 MB/s Faster peak read speed.
+16%
Write
Peak Sequential Write Speed
160 MB/s 186 MB/s Faster peak write speed.
+16%
4K Read
Peak 4K Random Read Speed
0.74 MB/s 0.81 MB/s Slightly faster peak random read.
+9%
4K Write
Peak 4K Random Write Speed
1.81 MB/s +1% 1.8 MB/s
Mixed
Peak Sequential Mixed IO Speed
151 MB/s 179 MB/s Faster peak mixed IO speed.
+19%
4K Mixed
Peak 4K Random Mixed IO Speed
0.24 MB/s 0.25 MB/s +4%
Market Share
Based on 9,220,319 HDDs tested.
Market Share
Market Share (trailing 30 days)
0.17 % 0.5 % Hugely higher market share.
+194%
Value
Value For Money
97.7 % 102 % +5%
User Rating
UBM User Rating
54 % 83 % Much more popular.
+54%
Price
Price (score)
$89 $80 Slightly cheaper.
+10%
Age
Newest
63 Months 20 Months Much more recent.
+68%
Capacity
Capacity
4TB 3TB
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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]

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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) May 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]

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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 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
AMD Ryzen 5 1600 $167Nvidia GTX 1070 $447Samsung 850 Evo 250GB $95
Intel Core i7-8700K $320Nvidia GTX 1060-6GB $300Samsung 850 Evo 500GB $139
Intel Core i7-7700K $285AMD RX 480 $300Samsung 850 Pro 256GB $163
HDDRAMUSB
Seagate Barracuda 1TB (2016) $44Corsair Vengeance LPX DDR4 3000 C15 2x8GB $180SanDisk Extreme 64GB $41
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $961SanDisk Extreme 32GB $30
Seagate Barracuda 2TB (2016) $60HyperX Fury DDR4 2133 C14 2x8GB $226SanDisk Extreme 16GB $20
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