Average Bench: 19.8% (956th of 984)

Based on 738 user benchmarks.  Models: ST9160821AS, ST916082 1AS, ST916082 ST9160821AS

Terrible average bench

The Seagate ST9160821AS 160GB averaged 80.2% 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 0.22MB/s
Avg. 4K Random Read Speed 0.35MB/s

Very good consistency

The range of scores (95th - 5th percentile) for the Seagate ST9160821AS 160GB is just 10.5%. This is a relatively narrow range which indicates that the Seagate ST9160821AS 160GB performs reasonably consistently under varying real world conditions.


Avg. Sequential Write Speed 34.2MB/s
Avg. Sequential Mixed IO Speed 29.6MB/s

Average Bench

(Based on 738 samples)
Min Avg Max
24.2 Read 34.7 43.1
23.5 Write 34.2 42.7
15.3 Mixed 29.6 41.1
24.6% 32.8 MB/s
Min Avg Max
0.07 4K Read 0.35 0.5
0.16 4K Write 0.59 0.79
0.08 4K Mixed 0.22 0.29
50.2% 0.39 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest HDD (mainstream) averages a speed of 100%
952GB free
Firmware: 3.BHD Max speed: SATA 1.0 150 MB/s
Read 113
Write 109
Mixed 105
82% 109 MB/s
4K Read 0.7
4K Write 1.39
4K Mixed 0.24
82% 0.78 MB/s
138GB free
Firmware: 3.ALC Max speed: SATA 1.0 150 MB/s
Read 43.3
Write 40.9
Mixed 40.5
31% 41.6 MB/s
4K Read 0.49
4K Write 0.89
4K Mixed 0.3
70% 0.56 MB/s
126GB free
Firmware: 3.ALC Max speed: SATA 1.0 150 MB/s
Read 38.9
Write 41.6
Mixed 39.6
30% 40 MB/s
4K Read 0.44
4K Write 0.71
4K Mixed 0.26
60% 0.47 MB/s
25GB free
Firmware: 3.ALC Max speed: SATA 1.0 150 MB/s
Read 38.1
Write 38.8
Mixed 39.5
29% 38.8 MB/s
4K Read 0.46
4K Write 0.5
4K Mixed 0.28
59% 0.41 MB/s
45GB free
Firmware: 3.BHE Max speed: SATA 1.0 150 MB/s
Read 27.2
Write 30.8
Mixed 30.6
22% 29.5 MB/s
4K Read 0.44
4K Write 0.59
4K Mixed 0.26
58% 0.43 MB/s
35GB free
Firmware: 3.AXC Max speed: SATA 1.0 150 MB/s
Read 27.5
Write 28
Mixed 27.3
21% 27.6 MB/s
4K Read 0.47
4K Write 0.54
4K Mixed 0.24
56% 0.42 MB/s
38GB free
Firmware: 3.ALC Max speed: SATA 1.0 150 MB/s
Read 14.4
Write 15.1
Mixed 9.34
10% 12.9 MB/s
4K Read 0.38
4K Write 0.71
4K Mixed 0.2
52% 0.43 MB/s
738 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 6,165,540 HDDs tested.


AmazonUS $24.993 mins ago.
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Typical ST9160821AS 160GB Builds (Compare 68 builds) See popular component choices, score breakdowns and rankings.
Gaming 11%
Tree trunk
Desktop 22%
Workstation 13%
Tree trunk

System: Dell Inspiron 1720

EDIT WITH CUSTOM PC BUILDER Value: 46% - Average Total price: $216

Popular ST9160821AS 160GB systems:

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Hard Drive Rankings (Price vs Performance) November 2017 HDD Rankings.

Welcome to our consumer Hard Drive comparison. We calculate effective speed which measures performance for typical consumers. Effective speed is adjusted by cost per GB to yield value for money. Calculated values don't always tell the whole picture so we check them against thousands of individual user ratings. The customizable table below combines these factors and more to bring you the definitive list of top HDDs. Share your opinion by voting. [HDrivePro]


984 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

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Intel Core i5-7600K $200Nvidia GTX 1060-6GB $260Samsung 850 Evo 500GB $154
Seagate Barracuda 1TB (2016) $45Corsair Vengeance LPX DDR4 3000 C15 2x8GB $170SanDisk Extreme 64GB $33
Seagate Barracuda 3TB (2016) $75G.SKILL Trident Z DDR4 3200 C14 4x16GB $1,050SanDisk Extreme 32GB $22
Seagate Barracuda 7200.14 1TB $55Corsair Vengeance LPX DDR4 3200 C16 2x8GB $200SanDisk Ultra Fit 32GB $12
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