Real World Speed
Performance profile from 13,702 user samples
11,292 User Benchmarks
Best Bench: 96% 3TB free
Worst Bench: 53% 368GB free
Poor: 53% Great: 96%
SPEED RANK: 80th / 984
2,410 User Benchmarks
Best Bench: 102% 3.5TB free
Worst Bench: 61% 7GB free
Poor: 61% Great: 102%
SPEED RANK: 42nd / 984
Effective Speed
Effective HDD Speed
77.1 % -12% 86.6 % Slightly faster effective speed.
+12%
Read
Avg. Sequential Read Speed
140 MB/s -10% 154 MB/s Slightly faster read speed.
+10%
Write
Avg. Sequential Write Speed
129 MB/s -15% 148 MB/s Slightly faster write speed.
+15%
4K Read
Avg. 4K Random Read Speed
0.58 MB/s -7% 0.62 MB/s Slightly faster random read.
+7%
4K Write
Avg. 4K Random Write Speed
1.34 MB/s -33% 1.78 MB/s Much faster random write.
+33%
Mixed
Avg. Sequential Mixed IO Speed
120 MB/s -4% 125 MB/s +4%
4K Mixed
Avg. 4K Random Mixed IO Speed
0.18 MB/s -33% 0.24 MB/s Much faster random mixed IO.
+33%
Read
Peak Sequential Read Speed
177 MB/s -3% 182 MB/s +3%
Write
Peak Sequential Write Speed
164 MB/s -9% 178 MB/s Slightly faster peak write speed.
+9%
4K Read
Peak 4K Random Read Speed
0.75 MB/s 0% 0.75 MB/s 0%
4K Write
Peak 4K Random Write Speed
1.89 MB/s -13% 2.14 MB/s Slightly faster peak random write.
+13%
Mixed
Peak Sequential Mixed IO Speed
153 MB/s +1% 151 MB/s -1%
4K Mixed
Peak 4K Random Mixed IO Speed
0.26 MB/s -12% 0.29 MB/s Slightly faster peak random mixed IO.
+12%
Market Share
Based on 5,798,287 HDDs tested.
Market Share
Market Share (trailing 30 days)
0.22 % Higher market share.
+16%
0.19 % -16%
Value
Value For Money
94.2 % -8% 101 % Slightly better value.
+8%
User Rating
UBM User Rating
54 % -31% 71 % Much more popular.
+31%
Price
Price (score)
$94 +4% $98 -4%
Age
Newest
56 Months -77% 13 Months Much more recent.
+77%
Capacity
Capacity
4TB 4TB
ADVERTISEMENT

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]

MORE DETAILS

Hard Drive Rankings (Price vs Performance) October 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 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
Intel Core i7-7700K $299Nvidia GTX 1070 $386Samsung 850 Evo 250GB $95
AMD Ryzen 7 1700 $280AMD RX 480 $508Samsung 850 Pro 256GB $126
Intel Core i5-7600K $230Nvidia GTX 1060-6GB $265Samsung 850 Evo 500GB $140
HDDRAMUSB
Seagate Barracuda 1TB (2016) $45Corsair Vengeance LPX DDR4 3000 C15 2x8GB $158SanDisk Extreme 64GB $33
Seagate Barracuda 3TB (2016) $75G.SKILL Trident Z DDR4 3200 C14 4x16GB $920SanDisk Extreme 32GB $22
Seagate Barracuda 2TB (2016) $67Corsair Vengeance LPX DDR4 3200 C16 2x8GB $180SanDisk Ultra Fit 32GB $13
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