Average Bench: 34.3% (626th of 1015)

Based on 6,956 user benchmarks.  Models: ST3320820AS, ST332082 ST3320820AS, ST332082 0A, ST332082 0AS

Poor average bench

The Seagate ST3320820AS 320GB averaged 65.7% 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 0.73MB/s
Avg. 4K Random Read Speed 0.62MB/s

Good consistency

The range of scores (95th - 5th percentile) for the Seagate ST3320820AS 320GB is 26.8%. This is a relatively narrow range which indicates that the Seagate ST3320820AS 320GB performs reasonably consistently under varying real world conditions.

Weaknesses

Avg. Sequential Write Speed 43.6MB/s
Avg. Sequential Mixed IO Speed 37.4MB/s
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Average Bench

(Based on 6,956 samples)
Min Avg Max
28.7 Read 63.1 77.8
14.8 Write 43.6 73.2
17.4 Mixed 37.4 44.3
17.4 SusWrite 56.1 77.4
36.8% 50.1 MB/s
Min Avg Max
0.3 4K Read 0.62 0.7
0.5 4K Write 1.3 1.8
0.3 4K Mixed 0.73 0.9
131% 0.88 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest HDD (mainstream) averages a speed of 100%
168GB free
Firmware: 3.AAC
SusWrite @10s intervals: 64 66 67 67 67 66 MB/s
Read 66.2
Write 35.3
Mixed 40.5
SusWrite 66
38% 52 MB/s
4K Read 0.6
4K Write 1.3
4K Mixed 0.8
138% 0.9 MB/s
240GB free (System drive)
Firmware: 3.AAC
SusWrite @10s intervals: 38 55 54 56 58 58 MB/s
Read 73.5
Write 62.2
Mixed 41.5
SusWrite 53.1
42% 57.6 MB/s
4K Read 0.7
4K Write 1.4
4K Mixed 0.9
155% 1 MB/s
119GB free
Firmware: 3.AH
SusWrite @10s intervals: 46 50 44 50 54 54 MB/s
Read 71
Write 32.5
Mixed 39.5
SusWrite 49.7
36% 48.2 MB/s
4K Read 0.6
4K Write 1.4
4K Mixed 0.8
140% 0.93 MB/s
13GB free
Firmware: 3.AAD
SusWrite @10s intervals: 57 57 57 57 58 53 MB/s
Read 61
Write 60.5
Mixed 36.3
SusWrite 56.2
39% 53.5 MB/s
4K Read 0.7
4K Write 1.2
4K Mixed 0.8
140% 0.9 MB/s
55GB free
Firmware: 3.AAD
SusWrite @10s intervals: 51 52 52 52 50 52 MB/s
Read 54.2
Write 28.7
Mixed 37.2
SusWrite 51.7
32% 43 MB/s
4K Read 0.6
4K Write 1.2
4K Mixed 0.8
136% 0.87 MB/s
83GB free
Firmware: 3.AAD
SusWrite @10s intervals: 43 45 45 45 45 45 MB/s
Read 59.2
Write 23.7
Mixed 37
SusWrite 44.3
30% 41 MB/s
4K Read 0.6
4K Write 1.2
4K Mixed 0.7
125% 0.83 MB/s
142GB free
Firmware: 3.CHN
SusWrite @10s intervals: 44 44 44 45 45 45 MB/s
Read 44.8
Write 20.3
Mixed 30.8
SusWrite 44.6
26% 35.1 MB/s
4K Read 0.7
4K Write 1.3
4K Mixed 0.8
142% 0.93 MB/s
260GB free
Firmware: 3.AAD
SusWrite @10s intervals: 28 0 0 MB/s
Read 75.3
Write 23.3
Mixed 43.7
SusWrite 12
29% 38.6 MB/s
4K Read 0.6
4K Write 1.4
4K Mixed 0.9
151% 0.97 MB/s
6,956 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 18,445,871 HDDs tested.

 Prices

AmazonUS $1995 mins
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Typical ST3320820AS 320GB Builds (Compare 474 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 12%
Tree trunk
Desktop
Desktop 31%
Sail boat
Workstation
Workstation 21%
Surfboard

System: Dell Inspiron 545

EDIT WITH CUSTOM PC BUILDER Value: 43% - Average Total price: $288

Popular ST3320820AS 320GB systems:

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Hard Drive Rankings (Price vs Performance) July 2019 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 i7-8700K $350Nvidia GTX 1070 $400Samsung 850 Evo 250GB $104
AMD Ryzen 5 2600 $127Nvidia GTX 1060-6GB $250Samsung 850 Evo 500GB $103
AMD Ryzen 7 2700X $252Nvidia GTX 1080-Ti $750Samsung 850 Pro 256GB $97
HDDRAMUSB
Seagate Barracuda 1TB (2016) $40Corsair Vengeance LPX DDR4 3000 C15 2x8GB $70SanDisk Extreme 64GB $128
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $728SanDisk Extreme 32GB $48
WD Blue 1TB (2012) $37Corsair Vengeance LPX DDR4 3200 C16 2x8GB $73SanDisk Ultra Fit 32GB $12
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