Average Bench: 38.6% (535th of 984)

Based on 1,243 user benchmarks.  Models: ST9640320AS, ST964032 0AS, ST964032 ST9640320AS

Poor average bench

The Seagate ST9640320AS 640GB averaged 61.3% 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 0.31MB/s
Avg. Sequential Read Speed 68.8MB/s

Very good consistency

The range of scores (95th - 5th percentile) for the Seagate ST9640320AS 640GB is just 19.5%. This is a relatively narrow range which indicates that the Seagate ST9640320AS 640GB performs reasonably consistently under varying real world conditions.

Weaknesses

Avg. 4K Random Read Speed 0.36MB/s
Avg. 4K Random Write Speed 0.84MB/s
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Average Bench

(Based on 1,243 samples)
Min Avg Max
44.7 Read 68.8 84.2
45.1 Write 65.9 80.4
18.2 Mixed 57.5 77.7
48.1% 64.1 MB/s
Min Avg Max
0.11 4K Read 0.36 0.51
0.59 4K Write 0.84 1.01
0.14 4K Mixed 0.31 0.42
64.9% 0.5 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest HDD (mainstream) averages a speed of 100%
453GB free
Firmware: 0002SDM1 Max speed: SATA 2.0 300 MB/s
SYSTEM NCQ 5799 RPM 4KALIGNED S.M.A.R.T
Read 76.2
Write 72.7
Mixed 66.8
54% 71.9 MB/s
4K Read 0.45
4K Write 0.61
4K Mixed 0.44
78% 0.5 MB/s
343GB free
Firmware: 0002SDM1 Max speed: SATA 2.0 300 MB/s
NCQ 5799 RPM 4KALIGNED S.M.A.R.T
Read 76.6
Write 71.3
Mixed 73.4
56% 73.7 MB/s
4K Read 0.51
4K Write 0.92
4K Mixed 0.41
84% 0.61 MB/s
493GB free
Firmware: 0001 Max speed: SATA 2.0 300 MB/s
SYSTEM NCQ 5799 RPM 4KALIGNED S.M.A.R.T
Read 77.8
Write 67.4
Mixed 73.2
55% 72.8 MB/s
4K Read 0.36
4K Write 0.93
4K Mixed 0.37
73% 0.55 MB/s
77GB free
Firmware: 0001SDM1 Max speed: SATA 2.0 300 MB/s
NCQ 5799 RPM 4KALIGNED S.M.A.R.T
Read 67.8
Write 69.1
Mixed 67.9
52% 68.3 MB/s
4K Read 0.38
4K Write 1.06
4K Mixed 0.23
62% 0.56 MB/s
189GB free
Firmware: 0001SDM1 Max speed: SATA 2.0 300 MB/s
NCQ 5799 RPM 4KALIGNED S.M.A.R.T
Read 66.7
Write 62.1
Mixed 64.2
48% 64.3 MB/s
4K Read 0.45
4K Write 0.9
4K Mixed 0.37
76% 0.57 MB/s
190GB free
Firmware: 0001DEM1 Max speed: SATA 2.0 300 MB/s
NCQ 5799 RPM 4KALIGNED S.M.A.R.T
Read 62.1
Write 65.8
Mixed 51.5
45% 59.8 MB/s
4K Read 0.47
4K Write 0.85
4K Mixed 0.3
69% 0.54 MB/s
1,243 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 7,179,329 HDDs tested.

 Prices

AmazonUS $12716 mins
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Typical ST9640320AS 640GB Builds (Compare 2,127 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 12%
Tree trunk
Desktop
Desktop 44%
Speed boat
Workstation
Workstation 19%
Surfboard

System: Dell Inspiron N5110

EDIT WITH CUSTOM PC BUILDER Value: 67% - Good Total price: $287

Popular ST9640320AS 640GB systems:

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Hard Drive Rankings (Price vs Performance) January 2018 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]

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 Frequently Asked Questions

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CPUGPUSSD
Intel Core i7-7700K $280Nvidia GTX 1070 $430Samsung 850 Evo 250GB $87
AMD Ryzen 7 1700 $270Nvidia GTX 1060-6GB $275Samsung 850 Evo 500GB $140
Intel Core i5-7600K $210AMD RX 480 $400Samsung 850 Pro 256GB $110
HDDRAMUSB
Seagate Barracuda 1TB (2016) $45Corsair Vengeance LPX DDR4 3000 C15 2x8GB $205SanDisk Extreme 64GB $65
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $931SanDisk Extreme 32GB $22
Seagate Barracuda 7200.14 1TB $51Corsair Vengeance LPX DDR4 3200 C16 2x8GB $220SanDisk Ultra Fit 32GB $12
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