SeagateST95005620AS
SeagateST3000DM008
Real World Speed
Performance profile from 6,386 user samples
2,429 User Benchmarks
Best Bench: 59% 908GB free
Worst Bench: 36% 93GB free
Poor: 36% Great: 59%
SPEED RANK: 353rd / 984
3,957 User Benchmarks
Best Bench: 110% 2.5TB free
Worst Bench: 79% 962GB free
Poor: 79% Great: 110%
SPEED RANK: 10th / 984
Effective Speed
Effective HDD Speed
48.4 % -101% 97.2 % Hugely faster effective speed.
+101%
Read
Avg. Sequential Read Speed
84.3 MB/s -111% 178 MB/s Hugely faster read speed.
+111%
Write
Avg. Sequential Write Speed
84.3 MB/s -91% 161 MB/s Hugely faster write speed.
+91%
4K Read
Avg. 4K Random Read Speed
0.54 MB/s -26% 0.68 MB/s Faster random read.
+26%
4K Write
Avg. 4K Random Write Speed
0.92 MB/s -67% 1.54 MB/s Much faster random write.
+67%
Mixed
Avg. Sequential Mixed IO Speed
77.8 MB/s -102% 157 MB/s Hugely faster mixed IO speed.
+102%
4K Mixed
Avg. 4K Random Mixed IO Speed
0.27 MB/s Faster random mixed IO.
+29%
0.21 MB/s -29%
Read
Peak Sequential Read Speed
104 MB/s -94% 202 MB/s Hugely faster peak read speed.
+94%
Write
Peak Sequential Write Speed
104 MB/s -80% 187 MB/s Much faster peak write speed.
+80%
4K Read
Peak 4K Random Read Speed
0.75 MB/s -8% 0.81 MB/s Slightly faster peak random read.
+8%
4K Write
Peak 4K Random Write Speed
1.28 MB/s -45% 1.85 MB/s Much faster peak random write.
+45%
Mixed
Peak Sequential Mixed IO Speed
98.6 MB/s -83% 180 MB/s Hugely faster peak mixed IO speed.
+83%
4K Mixed
Peak 4K Random Mixed IO Speed
0.35 MB/s Much faster peak random mixed IO.
+40%
0.25 MB/s -40%
Market Share
Based on 4,980,815 HDDs tested.
Market Share
Market Share (trailing 30 days)
0.09 % -311% 0.37 % Hugely higher market share.
+311%
Value
Value For Money
13.9 % -683% 109 % Hugely better value.
+683%
User Rating
UBM User Rating
52 % -56% 81 % Much more popular.
+56%
Price
Price (score)
$50 Much cheaper.
+35%
$77 -35%
Age
Newest
87 Months -87% 11 Months Hugely more recent.
+87%
Capacity
Capacity
500GB 3TB
ADVERTISEMENT

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]

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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) August 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 $298Nvidia GTX 1070 $410Samsung 850 Evo 250GB $100
AMD Ryzen 7 1700 $280AMD RX 480 $390Samsung 850 Pro 256GB $126
Intel Core i5-7600K $212Nvidia GTX 1060-6GB $260Samsung 850 Evo 500GB $165
HDDRAMUSB
Seagate Barracuda 1TB (2016) $45G.SKILL Trident Z DDR4 3200 C14 4x16GB $718SanDisk Extreme 64GB $45
Seagate Barracuda 3TB (2016) $77Corsair Vengeance LPX DDR4 3000 C15 2x8GB $140SanDisk Extreme 32GB $22
Seagate Barracuda 7200.14 1TB $57HyperX Fury DDR4 2133 C14 2x8GB $140SanDisk Ultra Fit 32GB $13
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