Average Bench: 47% (364th of 1015)

Based on 4,696 user benchmarks.  Models: ST31000340AS, ST310003 40AS, ST310003 ST31000340AS

Below average average bench

The Seagate ST31000340AS 1TB averaged 53.0% 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.


Avg. 4K Random Mixed IO Speed 0.74MB/s
Avg. 4K Random Read Speed 0.72MB/s

Above average consistency

The range of scores (95th - 5th percentile) for the Seagate ST31000340AS 1TB is 30.2%. This is a relatively narrow range which indicates that the Seagate ST31000340AS 1TB performs reasonably consistently under varying real world conditions.


Avg. Sequential Write Speed 43.6MB/s
Avg. Sequential Mixed IO Speed 41.7MB/s

Average Bench

(Based on 4,696 samples)
Min Avg Max
47.6 Read 82.9 105
7.5 Write 43.6 99.8
17.7 Mixed 41.7 55
43 SusWrite 80.5 105
45.7% 62.2 MB/s
Min Avg Max
0.5 4K Read 0.72 0.8
0.8 4K Write 1.49 1.9
0.4 4K Mixed 0.74 1
140% 0.98 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest HDD (mainstream) averages a speed of 100%
931GB free
Firmware: SD04
SusWrite @10s intervals: 97 102 96 102 100 100 MB/s
Read 100
Write 42.3
Mixed 50.7
SusWrite 99.5
54% 73.1 MB/s
4K Read 0.6
4K Write 1.5
4K Mixed 0.7
130% 0.93 MB/s
856GB free
Firmware: SD14
SusWrite @10s intervals: 100 102 102 103 102 102 MB/s
Read 97.3
Write 97.8
Mixed 53
SusWrite 102
64% 87.5 MB/s
4K Read 0.7
4K Write 1.6
4K Mixed 0.7
137% 1 MB/s
116GB free
Firmware: SD15
SusWrite @10s intervals: 91 94 95 94 94 93 MB/s
Read 89.3
Write 12.8
Mixed 40
SusWrite 93.6
43% 58.9 MB/s
4K Read 0.8
4K Write 1.4
4K Mixed 0.7
137% 0.97 MB/s
103GB free
Firmware: SD15
SusWrite @10s intervals: 100 98 94 96 97 101 MB/s
Read 68
Write 70
Mixed 43.7
SusWrite 97.6
51% 69.8 MB/s
4K Read 0.8
4K Write 1.5
4K Mixed 0.7
139% 1 MB/s
4,696 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 23,065,441 HDDs tested.


AmazonUS $1466 mins
Send price feedback
Typical ST31000340AS 1TB Builds (Compare 50,763 builds) See popular component choices, score breakdowns and rankings.
Gaming 33%
Sail boat
Desktop 60%
Workstation 24%

Disqualified System: bin bin

EDIT WITH CUSTOM PC BUILDER Value: 55% - Above average Total price: $405

Popular ST31000340AS 1TB systems:

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) January 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]


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.


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.
Intel Core i5-9600K $218Nvidia GTX 1660S (Super) $240Crucial MX500 250GB $42
Intel Core i5-9400F $155Nvidia GTX 1650S (Super) $170Samsung 850 Evo 120GB $78
Intel Core i7-9700K $384Nvidia RTX 2060 $340Samsung 850 Pro 512GB $204
Seagate Barracuda 1TB (2016) $37Corsair Vengeance LPX DDR4 3200 C16 2x8GB $73SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $40Corsair Vengeance LPX DDR4 3000 C15 2x8GB $63SanDisk Extreme 32GB $46
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $653SanDisk Ultra Fit 32GB $16
Today's hottest deals
About  •  User Guide  •  FAQs  •  Email  •  Privacy  •  Developer Feedback