Average Bench: 37.5% (547th of 1015)

Based on 10,943 user benchmarks.  Model: Hitachi HDS721010KLA330

Poor average bench

The Hitachi HDS721010KLA330 1TB averaged 62.4% 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.


Avg. 4K Random Mixed IO Speed 0.89MB/s
Avg. 4K Random Read Speed 0.77MB/s

Good consistency

The range of scores (95th - 5th percentile) for the Hitachi HDS721010KLA330 1TB is 22.9%. This is a relatively narrow range which indicates that the Hitachi HDS721010KLA330 1TB performs reasonably consistently under varying real world conditions.


Avg. Sequential Mixed IO Speed 38.8MB/s
Avg. Sequential Read Speed 64.6MB/s

Average Bench

(Based on 10,943 samples)
Min Avg Max
35.9 Read 64.6 80.3
36.8 Write 67.5 84.7
26 Mixed 38.8 44.5
34.3 SusWrite 65.8 82.4
43.5% 59.2 MB/s
Min Avg Max
0.4 4K Read 0.77 0.9
0.9 4K Write 1.68 1.9
0.6 4K Mixed 0.89 1
162% 1.11 MB/s
User Benchmarks BenchSequentialRandom 4kDeep queue 4k
The fastest HDD (mainstream) averages a speed of 100%
923GB free
Firmware: GKAOA9DA
SusWrite @10s intervals: 83 81 82 82 82 82 MB/s
Read 80.9
Write 79.4
Mixed 41.7
SusWrite 82
52% 71 MB/s
4K Read 0.9
4K Write 1.8
4K Mixed 1
182% 1.23 MB/s
599GB free
Firmware: GKAOA70M
SusWrite @10s intervals: 75 75 65 76 76 74 MB/s
Read 78.9
Write 82.4
Mixed 42.7
SusWrite 73.5
51% 69.4 MB/s
4K Read 0.9
4K Write 1.9
4K Mixed 1
184% 1.27 MB/s
513GB free
Firmware: GKAOA9DA
SusWrite @10s intervals: 74 74 74 74 74 74 MB/s
Read 67.8
Write 76.9
Mixed 39.5
SusWrite 73.8
47% 64.5 MB/s
4K Read 0.8
4K Write 1.9
4K Mixed 0.9
168% 1.2 MB/s
330GB free
Firmware: GKAOAB0A
SusWrite @10s intervals: 65 66 66 66 66 66 MB/s
Read 58.9
Write 64.7
Mixed 44.3
SusWrite 66.1
43% 58.5 MB/s
4K Read 0.7
4K Write 1.6
4K Mixed 1
170% 1.1 MB/s
116GB free
Firmware: GKAOA9DA
SusWrite @10s intervals: 53 52 53 53 53 52 MB/s
Read 69.9
Write 74.1
Mixed 37.3
SusWrite 52.6
43% 58.5 MB/s
4K Read 0.8
4K Write 1.7
4K Mixed 0.9
165% 1.13 MB/s
274GB free
Firmware: GKAOA51D
SusWrite @10s intervals: 62 62 61 60 59 61 MB/s
Read 53.2
Write 65.2
Mixed 39.5
SusWrite 60.8
40% 54.7 MB/s
4K Read 0.7
4K Write 1.4
4K Mixed 0.9
155% 1 MB/s
10,943 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 53,479,202 HDDs tested


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AmazonUS $478 years
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Typical HDS721010KLA330 1TB Builds (Compare 24,488 builds) See popular component choices, score breakdowns and rankings
Gaming 2%
Tree trunk
Desktop 61%
Workstation 2%
Tree trunk

Disqualified System: bin bin

EDIT WITH CUSTOM PC BUILDER Value: 64% - Good Total price: $325

Popular HDS721010KLA330 1TB systems:

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