Average Bench: 46% (385th of 1015)

Based on 4,147 user benchmarks.  Models: ST3500620AS, ST350062 ST3500620AS, ST350062 0AS

Below average average bench

The Seagate ST3500620AS 500GB averaged 54.0% 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 0.58MB/s
Avg. 4K Random Read Speed 0.5MB/s

Above average consistency

The range of scores (95th - 5th percentile) for the Seagate ST3500620AS 500GB is 35.9%. This is a relatively wide range which indicates that the Seagate ST3500620AS 500GB performs inconsistently under varying real world conditions.


Avg. Sequential Mixed IO Speed 43.1MB/s
Avg. Sequential Write Speed 50.8MB/s

Average Bench

(Based on 4,147 samples)
Min Avg Max
36.1 Read 82.1 106
11.7 Write 50.8 101
19.6 Mixed 43.1 54.1
34.8 SusWrite 78.1 106
46.6% 63.5 MB/s
Min Avg Max
0.3 4K Read 0.5 0.7
0.6 4K Write 1.07 1.6
0.3 4K Mixed 0.58 0.8
105% 0.72 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest HDD (mainstream) averages a speed of 100%
262GB free
Firmware: HP24
SusWrite @10s intervals: 86 89 90 91 91 91 MB/s
Read 87.2
Write 88.5
Mixed 49.2
SusWrite 89.8
58% 78.7 MB/s
4K Read 0.5
4K Write 0.9
4K Mixed 0.5
93% 0.63 MB/s
62GB free
Firmware: SD25
SusWrite @10s intervals: 82 84 84 85 84 84 MB/s
Read 90
Write 76
Mixed 49.5
SusWrite 83.8
55% 74.8 MB/s
4K Read 0.5
4K Write 1
4K Mixed 0.5
95% 0.67 MB/s
140GB free
Firmware: SD25
SusWrite @10s intervals: 69 67 69 69 70 70 MB/s
Read 54
Write 13.8
Mixed 34.3
SusWrite 69
32% 42.8 MB/s
4K Read 0.4
4K Write 1
4K Mixed 0.6
102% 0.67 MB/s
76GB free
Firmware: HP26
SusWrite @10s intervals: 42 38 34 51 47 58 MB/s
Read 37.5
Write 9.2
Mixed 18.4
SusWrite 45
20% 27.5 MB/s
4K Read 0.4
4K Write 0.9
4K Mixed 0.5
89% 0.6 MB/s
4,147 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 29,582,155 HDDs tested.


AmazonUS $701 month
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Typical ST3500620AS 500GB Builds (Compare 49 builds) See popular component choices, score breakdowns and rankings.
Gaming 5%
Tree trunk
Desktop 44%
Speed boat
Workstation 4%
Tree trunk

System: Dell Studio Slim 540s

EDIT WITH CUSTOM PC BUILDER Value: 69% - Good Total price: $109

Popular ST3500620AS 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 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 $192Nvidia GTX 1660S (Super) $230Crucial MX500 250GB $46
Intel Core i5-9400F $153Nvidia GTX 1650S (Super) $170Samsung 850 Evo 120GB $78
Intel Core i7-9700K $335Nvidia RTX 2070S (Super) $510Samsung 860 Evo 250GB $47
Seagate Barracuda 1TB (2016) $43Corsair Vengeance LPX DDR4 3200 C16 2x8GB $60SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $34Corsair Vengeance LPX DDR4 3000 C15 2x8GB $69SanDisk Extreme 32GB $46
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $681SanDisk Extreme 16GB $24
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