Average Bench: 34.5% (608th of 1015)

Based on 3,148 user benchmarks.  Models: ST9640320AS, ST964032 0AS, ST964032 ST9640320AS

Poor average bench

The Seagate ST9640320AS 640GB averaged 65.4% 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 0.57MB/s
Avg. 4K Random Read Speed 0.43MB/s

Above average consistency

The range of scores (95th - 5th percentile) for the Seagate ST9640320AS 640GB is 38.4%. This is a relatively wide range which indicates that the Seagate ST9640320AS 640GB performs inconsistently under varying real world conditions.

Weaknesses

Avg. Sequential Mixed IO Speed 36.9MB/s
Avg. Sustained Write Speed 57.7MB/s
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Average Bench

(Based on 3,148 samples)
Min Avg Max
9.69 Read 62.6 85.8
15.9 Write 61.4 82.8
12.9 Mixed 36.9 47.8
18.4 SusWrite 57.7 85
40.1% 54.6 MB/s
Min Avg Max
0.1 4K Read 0.43 0.5
0.6 4K Write 0.85 1
0.2 4K Mixed 0.57 0.7
97.4% 0.62 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest HDD (mainstream) averages a speed of 100%
396GB free (System drive)
Firmware: 0001DEM1
SusWrite @10s intervals: 55 60 64 62 63 63 MB/s
Read 78.9
Write 68.5
Mixed 44.7
SusWrite 61.1
47% 63.3 MB/s
4K Read 0.5
4K Write 0.9
4K Mixed 0.6
104% 0.67 MB/s
200GB free (System drive)
Firmware: 0001
SusWrite @10s intervals: 28 53 36 54 49 54 MB/s
Read 63.5
Write 51.2
Mixed 38
SusWrite 45.9
37% 49.7 MB/s
4K Read 0.5
4K Write 0.9
4K Mixed 0.6
104% 0.67 MB/s
249GB free
Firmware: 0002SDM1
SusWrite @10s intervals: 81 82 83 83 84 84 MB/s
Read 22.4
Write 81.6
Mixed 21.1
SusWrite 82.9
38% 52 MB/s
4K Read 0.5
4K Write 1
4K Mixed 0.6
106% 0.7 MB/s
34GB free (System drive)
Firmware: 0001
SusWrite @10s intervals: 10 48 13 12 51 66 MB/s
Read 64.5
Write 58.8
Mixed 35
SusWrite 33.3
35% 47.9 MB/s
4K Read 0.4
4K Write 0.9
4K Mixed 0.1
44% 0.47 MB/s
48GB free (System drive)
Firmware: 0002DEM1
SusWrite @10s intervals: 21 17 11 19 26 38 MB/s
Read 31.8
Write 39.2
Mixed 28.2
SusWrite 21.9
22% 30.3 MB/s
4K Read 0.3
4K Write 0.7
4K Mixed 0.5
81% 0.5 MB/s
3,148 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 27,152,059 HDDs tested.

 Prices

AmazonUS $843 days
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Typical ST9640320AS 640GB Builds (Compare 6,981 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 12%
Tree trunk
Desktop
Desktop 57%
Gunboat
Workstation
Workstation 23%
Surfboard

System: Dell Inspiron N5110

EDIT WITH CUSTOM PC BUILDER Value: 52% - Above average Total price: $275

Popular ST9640320AS 640GB systems:

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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.

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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.
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  • - Share your opinion by voting.
Hard Drive Rankings (Price vs Performance) May 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 i5-9400F $165Nvidia GTX 1660S (Super) $230Crucial MX500 250GB $49
Intel Core i5-9600K $199Nvidia GTX 1650S (Super) $160Samsung 850 Evo 120GB $78
Intel Core i7-9700K $345Nvidia RTX 2070S (Super) $500Samsung 850 Pro 512GB $240
HDDRAMUSB
Seagate Barracuda 1TB (2016) $43Corsair Vengeance LPX DDR4 3200 C16 2x8GB $80SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $40Corsair Vengeance LPX DDR4 3000 C15 2x8GB $75SanDisk Extreme 32GB $46
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $681SanDisk Ultra Fit 32GB $16
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