Average Bench: 58.6% (205th of 1015)

Based on 289 user benchmarks.  Models: ST31000521AS, ST310005 21AS, ST310005 ST31000521AS

Average average bench

The Seagate ST31000521AS 1TB averaged 41.3% lower than the peak scores attained by the group leaders. This isn't a great result which indicates that there are much faster alternatives on the comparison list.

Strengths

Avg. 4K Random Mixed IO Speed 0.79MB/s
Avg. 4K Random Read Speed 0.76MB/s

Above average consistency

The range of scores (95th - 5th percentile) for the Seagate ST31000521AS 1TB is 34.7%. This is a relatively narrow range which indicates that the Seagate ST31000521AS 1TB performs reasonably consistently under varying real world conditions.

Weaknesses

Avg. Sequential Mixed IO Speed 72.2MB/s
Avg. Sustained Write Speed 99MB/s
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Average Bench

(Based on 289 samples)
Min Avg Max
67.8 Read 104 131
63.7 Write 102 130
34.9 Mixed 72.2 112
55.8 SusWrite 99 130
69.3% 94.1 MB/s
Min Avg Max
0.4 4K Read 0.76 0.93
1.22 4K Write 1.66 2.1
0.35 4K Mixed 0.79 1.1
150% 1.07 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest HDD (mainstream) averages a speed of 100%
915GB free
Firmware: CCA3
SusWrite @10s intervals: 133 135 135 135 136 134 MB/s
Read 132
Write 132
Mixed 63.9
SusWrite 135
84% 116 MB/s
4K Read 1
4K Write 1.9
4K Mixed 1.1
199% 1.33 MB/s
197GB free
Firmware: CC14
SusWrite @10s intervals: 107 108 108 109 109 109 MB/s
Read 124
Write 120
Mixed 65.8
SusWrite 108
77% 105 MB/s
4K Read 0.9
4K Write 1.9
4K Mixed 1.1
195% 1.3 MB/s
318GB free
Firmware: CC14
SusWrite @10s intervals: 110 108 108 109 108 109 MB/s
Read 119
Write 113
Mixed 73.2
SusWrite 109
76% 103 MB/s
4K Read 0.9
4K Write 1.7
4K Mixed 1
180% 1.2 MB/s
579GB free
Firmware: CC14
SusWrite @10s intervals: 104 114 114 115 114 113 MB/s
Read 112
Write 106
Mixed 72.7
SusWrite 112
74% 101 MB/s
4K Read 0.9
4K Write 1.6
4K Mixed 1
178% 1.17 MB/s
159GB free
Firmware: CC14
SusWrite @10s intervals: 76 73 77 78 77 78 MB/s
Read 113
Write 118
Mixed 59.8
SusWrite 76.4
67% 91.9 MB/s
4K Read 0.8
4K Write 1.6
4K Mixed 0.9
163% 1.1 MB/s
193GB free
Firmware: CC14
SusWrite @10s intervals: 91 90 93 91 93 92 MB/s
Read 85.9
Write 96.5
Mixed 59.2
SusWrite 91.7
61% 83.3 MB/s
4K Read 0.7
4K Write 1.8
4K Mixed 0.7
140% 1.07 MB/s
612GB free (System drive)
Firmware: CC14
SusWrite @10s intervals: 53 57 66 79 48 38 MB/s
Read 112
Write 110
Mixed 69.3
SusWrite 57
64% 87.3 MB/s
4K Read 0.7
4K Write 1.7
4K Mixed 0.9
161% 1.1 MB/s
145GB free
Firmware: CCA3
SusWrite @10s intervals: 96 97 99 98 99 100 MB/s
Read 67.2
Write 63.3
Mixed 54.5
SusWrite 98
52% 70.8 MB/s
4K Read 0.7
4K Write 1.4
4K Mixed 0.9
155% 1 MB/s
434GB free
Firmware: CCA3
SusWrite @10s intervals: 65 64 64 65 65 65 MB/s
Read 95.7
Write 99.1
Mixed 65.4
SusWrite 64.6
60% 81.2 MB/s
4K Read 0.9
4K Write 1.5
4K Mixed 1.1
188% 1.17 MB/s
289 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 31,982,019 HDDs tested.

Typical ST31000521AS 1TB Builds (Compare 3,283 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 4%
Tree trunk
Desktop
Desktop 54%
Yacht
Workstation
Workstation 4%
Tree trunk

Motherboard: Gigabyte GA-78LMT-USB3 - $117

EDIT WITH CUSTOM PC BUILDER Value: 68% - Good Total price: $235

Popular ST31000521AS 1TB compatible motherboards:

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.
  • - CPU tests include: integer, floating and string.
  • - GPU tests include: six 3D game simulations.
  • - Drive tests include: read, write, sustained write and mixed IO.
  • - 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 current market leaders.
  • - Explore your best upgrade options with a virtual PC build.
  • - Compare your in-game FPS to other users with your hardware.
  • - Share your opinion by voting.
Hard Drive Rankings (Price vs Performance) October 2020 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.
  • Best value for money - Value for money is based on real world performance.
  • Fastest real world speed - Real World Speed measures performance for typical consumers.

 Comments

1015 Drives (Compared) Thousands of user benchmarks compiled into one comparison list.

See how consistently different HDDs perform with varying real world conditions. The charts also illustrate overall performance, popularity and rank.

 Frequently Asked Questions

 Best User Rated

The Best.
CPUGPUSSD
Intel Core i5-9600K $185Nvidia GTX 1660S (Super) $230Crucial MX500 250GB $45
Intel Core i5-9400F $142Nvidia RTX 3080 $700Samsung 850 Evo 120GB $78
Intel Core i5-10600K $275Nvidia GTX 1650S (Super) $170Samsung 860 Evo 250GB $49
HDDRAMUSB
Seagate Barracuda 1TB (2016) $43Corsair Vengeance LPX DDR4 3200 C16 2x8GB $69SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $34Corsair Vengeance LPX DDR4 3000 C15 2x8GB $69SanDisk Extreme 32GB $28
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $548SanDisk Extreme 16GB $28
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