Average Bench: 45.8% (390th of 1015)

Based on 31,857 user benchmarks.  Models: ST3500312CS, ST3500312CS-1CT162, ST350031 ST3500312CS, ST350031 2CS

Below average average bench

The Seagate ST3500312CS 500GB averaged 54.1% 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 0.72MB/s
Avg. 4K Random Write Speed 1.55MB/s

Average consistency

The range of scores (95th - 5th percentile) for the Seagate ST3500312CS 500GB is 40.5%. This is a relatively wide range which indicates that the Seagate ST3500312CS 500GB performs inconsistently under varying real world conditions.


Avg. Sequential Mixed IO Speed 46.1MB/s
Avg. Sustained Write Speed 76.2MB/s

Average Bench

(Based on 31,857 samples)
Min Avg Max
22.5 Read 83.4 109
33.6 Write 81.6 106
23.5 Mixed 46.1 57.4
26.9 SusWrite 76.2 108
52.7% 71.8 MB/s
Min Avg Max
0.23 4K Read 0.52 0.6
0.93 4K Write 1.55 1.8
0.4 4K Mixed 0.72 0.9
130% 0.93 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest HDD (mainstream) averages a speed of 100%
76GB free
Firmware: SC13
SusWrite @10s intervals: 100 101 103 103 103 103 MB/s
Read 98.7
Write 98.2
Mixed 50.8
SusWrite 102
64% 87.4 MB/s
4K Read 0.6
4K Write 1.7
4K Mixed 0.8
145% 1.03 MB/s
79GB free
Firmware: SC13
SusWrite @10s intervals: 89 91 90 92 91 92 MB/s
Read 102
Write 103
Mixed 57.5
SusWrite 90.6
65% 88.3 MB/s
4K Read 0.6
4K Write 1.7
4K Mixed 0.7
134% 1 MB/s
156GB free
Firmware: CA12
SusWrite @10s intervals: 76 77 76 75 78 78 MB/s
Read 104
Write 104
Mixed 55.6
SusWrite 76.5
62% 85.1 MB/s
4K Read 0.5
4K Write 1.8
4K Mixed 0.7
132% 1 MB/s
31,857 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 19,302,932 HDDs tested.


AmazonUS $1825 mins
Send price feedback
Typical ST3500312CS 500GB Builds (Compare 41,958 builds) See popular component choices, score breakdowns and rankings.
Gaming 30%
Desktop 57%
Workstation 22%

Disqualified System: bin bin

EDIT WITH CUSTOM PC BUILDER Value: 46% - Average Total price: $527

Popular ST3500312CS 500GB 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) August 2019 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 $219Nvidia GTX 1660 $220Samsung 850 Evo 250GB $86
Intel Core i5-9400F $143AMD RX 580 $167Samsung 850 Evo 500GB $102
AMD Ryzen 5 3600 $196Nvidia GTX 1660-Ti $270Samsung 850 Pro 256GB $97
Seagate Barracuda 1TB (2016) $40Corsair Vengeance LPX DDR4 3000 C15 2x8GB $75SanDisk Extreme 64GB $88
WD Blue 1TB (2012) $42G.SKILL Trident Z DDR4 3200 C14 4x16GB $799SanDisk Extreme 32GB $48
Seagate Barracuda 3TB (2016) $75Corsair Vengeance LPX DDR4 3200 C16 2x8GB $80SanDisk Extreme 16GB $24
Today's hottest deals
About  •  User Guide  •  FAQs  •  Email  •  Privacy  •  Developer Feedback