Average Bench: 46.9% (409th of 995)

Based on 1,645 user benchmarks.  Models: ST3500620AS, ST350062 ST3500620AS, ST350062 0AS

Below average average bench

The Seagate ST3500620AS 500GB averaged 53.1% 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 0.3MB/s
Avg. Sequential Read Speed 83.2MB/s

Good consistency

The range of scores (95th - 5th percentile) for the Seagate ST3500620AS 500GB is 27.1%. This is a relatively narrow range which indicates that the Seagate ST3500620AS 500GB performs reasonably consistently under varying real world conditions.


Avg. Sequential Mixed IO Speed 64.2MB/s
Avg. 4K Random Write Speed 0.97MB/s

Average Bench

(Based on 1,645 samples)
Min Avg Max
53.2 Read 83.2 103
53.2 Write 80.3 103
24.1 Mixed 64.2 95.2
56.7% 75.9 MB/s
Min Avg Max
0.16 4K Read 0.44 0.66
0.39 4K Write 0.97 1.59
0.14 4K Mixed 0.3 0.46
69.3% 0.57 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest HDD (mainstream) averages a speed of 100%
407GB free
Firmware: HP26 Max speed: SATA 2.0 300 MB/s
Read 92.3
Write 96.4
Mixed 97.5
72% 95.4 MB/s
4K Read 0.54
4K Write 0.95
4K Mixed 0.22
65% 0.57 MB/s
340GB free
Firmware: LC11 Max speed: SATA 2.0 300 MB/s
Read 69.9
Write 81.6
Mixed 76.5
57% 76 MB/s
4K Read 0.35
4K Write 1.31
4K Mixed 0.38
81% 0.68 MB/s
1,645 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 8,300,895 HDDs tested.


AmazonUS $7348 secs
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Typical ST3500620AS 500GB Builds (Compare 546 builds) See popular component choices, score breakdowns and rankings.
Gaming 12%
Tree trunk
Desktop 28%
Workstation 15%
Tree trunk

System: Dell Inspiron 530

EDIT WITH CUSTOM PC BUILDER Value: 56% - Above average Total price: $170

Popular ST3500620AS 500GB systems:

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Hard Drive Rankings (Price vs Performance) March 2018 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.
  • Fastest effective speed - Real World Speed measures performance for typical consumers.
  • Best value for money - Value for money is based on real world performance, price and capacity.


995 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 i7-8700K $330Nvidia GTX 1070 $447Samsung 850 Evo 250GB $85
Intel Core i7-7700K $290Nvidia GTX 1060-6GB $335Samsung 850 Evo 500GB $150
AMD Ryzen 5 1600 $188AMD RX 480 $400Samsung 850 Pro 256GB $163
Seagate Barracuda 1TB (2016) $44Corsair Vengeance LPX DDR4 3000 C15 2x8GB $190SanDisk Extreme 64GB $44
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $931SanDisk Extreme 32GB $23
Seagate Barracuda 2TB (2016) $60Corsair Vengeance LPX DDR4 3200 C16 2x8GB $216SanDisk Extreme 16GB $18
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