Average Bench: 30.8% (704th of 1015)

Based on 3,481 user benchmarks.  Model: Hitachi HDS721616PLA380

Poor average bench

The Hitachi HDS721616PLA380 165GB averaged 69.2% 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 0.72MB/s
Avg. 4K Random Write Speed 1.52MB/s

Good consistency

The range of scores (95th - 5th percentile) for the Hitachi HDS721616PLA380 165GB is 26.4%. This is a relatively narrow range which indicates that the Hitachi HDS721616PLA380 165GB performs reasonably consistently under varying real world conditions.


Avg. Sequential Mixed IO Speed 34.8MB/s
Avg. Sustained Write Speed 50.4MB/s

Average Bench

(Based on 3,481 samples)
Min Avg Max
20.1 Read 56.6 72.4
16.4 Write 52.4 66.7
15.7 Mixed 34.8 43.6
17.1 SusWrite 50.4 67.3
35.7% 48.5 MB/s
Min Avg Max
0.2 4K Read 0.58 0.7
0.5 4K Write 1.52 1.9
0.3 4K Mixed 0.72 0.8
132% 0.94 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest HDD (mainstream) averages a speed of 100%
100GB free
Firmware: P22OA70A
SusWrite @10s intervals: 58 62 58 60 60 56 MB/s
Read 73
Write 62.9
Mixed 42.9
SusWrite 59
44% 59.4 MB/s
4K Read 0.7
4K Write 1.7
4K Mixed 0.8
150% 1.07 MB/s
107GB free
Firmware: P22OAB3A
SusWrite @10s intervals: 63 63 64 62 63 63 MB/s
Read 63.3
Write 62
Mixed 38.3
SusWrite 62.9
42% 56.6 MB/s
4K Read 0.6
4K Write 1.8
4K Mixed 0.8
147% 1.07 MB/s
72GB free (System drive)
Firmware: P22OABEA
SusWrite @10s intervals: 28 43 30 45 25 40 MB/s
Read 66.9
Write 56.8
Mixed 40.6
SusWrite 35.2
37% 49.9 MB/s
4K Read 0.6
4K Write 1.7
4K Mixed 0.8
145% 1.03 MB/s
37GB free (System drive)
Firmware: P22OAB3A
SusWrite @10s intervals: 31 39 29 37 38 39 MB/s
Read 37
Write 44
Mixed 31
SusWrite 35.6
27% 36.9 MB/s
4K Read 0.6
4K Write 1.5
4K Mixed 0.7
130% 0.93 MB/s
3,481 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 40,749,633 HDDs tested.


AmazonUS $463 years
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Typical HDS721616PLA380 165GB Builds (Compare 41,215 builds) See popular component choices, score breakdowns and rankings.
Gaming 2%
Tree trunk
Desktop 65%
Workstation 2%
Tree trunk

Disqualified System: bin bin

EDIT WITH CUSTOM PC BUILDER Value: 68% - Good Total price: $326

Popular HDS721616PLA380 165GB 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.
  • - SkillBench (space shooter) tests user input accuracy.
  • - Reports are generated and presented on userbenchmark.com.
  • - Identify the strongest components in your PC.
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  • - Compare your components to the current market leaders.
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Hard Drive Rankings (Price vs Performance) September 2021 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.
  • 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.


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

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