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Hitachi

HTS721075A9 750GB

▲ 500 ▼

Release date ≈ Q3 2017.

Average Bench: 45.3% (390th of 1015)

Based on 8 user benchmarks.  Model: HGST HTS721075A9
Poor: 21%Average: 45.3% Great: 74%

Below average average bench

The Hitachi HTS721075A9 750GB averaged 54.7% 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 0.32MB/s
Avg. 4K Random Write Speed 1.26MB/s

Below average consistency

The range of scores (95th - 5th percentile) for the Hitachi HTS721075A9 750GB is 53%. This is a relatively wide range which indicates that the Hitachi HTS721075A9 750GB performs inconsistently under varying real world conditions.

Weaknesses

Avg. Sequential Mixed IO Speed 44.2MB/s
Avg. Sequential Read Speed 76.4MB/s
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Average Bench

(Based on 8 samples)
Rank 39045.3%
Min Avg Max
24 Read 76.4 131
58.2 Write 83.4 125
19.2 Mixed 44.2 107
48.7 SusWrite 86.1 126
53.1% 72.5 MB/s
Min Avg Max
0.3 4K Read 0.54 0.7
0.6 4K Write 1.26 1.8
0.16 4K Mixed 0.32 0.6
81.1% 0.71 MB/s
User Benchmarks BenchSequentialRandom 4kDeep queue 4k
The fastest HDD (mainstream) averages a speed of 100%
394GB free
Firmware: A3J0
SusWrite @10s intervals: 125 126 127 127 126 127 MB/s
73.9% Very good
Read 131
Write 125
Mixed 34.5
SusWrite 126
76% 104 MB/s
4K Read 0.7
4K Write 1.8
4K Mixed 0.6
129% 1.03 MB/s
498GB free
Firmware: JB2O
SusWrite @10s intervals: 126 126 120 125 125 124 MB/s
69.8% Good
Read 119
Write 120
Mixed 37.1
SusWrite 124
73% 100 MB/s
4K Read 0.7
4K Write 1.7
4K Mixed 0.6
127% 1 MB/s
17GB free
Firmware: A3J0 Max speed: SATA 3.0 600 MB/s
60.3% Good
Read 110
Write 99.9
Mixed 107
80% 106 MB/s
4K Read 0.62
4K Write 1.62
4K Mixed 0.18
76% 0.81 MB/s
514GB free
Firmware: A3K0
SusWrite @10s intervals: 60 72 69 73 64 54 MB/s
43% Average
Read 84.5
Write 74.1
Mixed 26.3
SusWrite 65.4
46% 62.6 MB/s
4K Read 0.5
4K Write 0.6
4K Mixed 0.2
54% 0.43 MB/s
70GB free
Firmware: A3K0
35% Below average
Read 60
Write 61.9
Mixed 61.9
46% 61.3 MB/s
4K Read 0.67
4K Write 0.98
4K Mixed 0.19
68% 0.62 MB/s
334GB free (System drive)
Firmware: A3K0 Max speed: SATA 3.0 600 MB/s
32.7% Below average
Read 55.1
Write 58.5
Mixed 46.4
40% 53.3 MB/s
4K Read 0.44
4K Write 1.17
4K Mixed 0.16
58% 0.59 MB/s
100GB free
Firmware: A3K0
SusWrite @10s intervals: 66 64 65 66 67 68 MB/s
26.6% Poor
Read 26.7
Write 58.2
Mixed 19.2
SusWrite 65.9
31% 42.5 MB/s
4K Read 0.4
4K Write 1.1
4K Mixed 0.3
70% 0.6 MB/s
100GB free
Firmware: A3K0
SusWrite @10s intervals: 67 65 57 36 8.6 58 MB/s
20.9% Poor
Read 24
Write 69.6
Mixed 21.2
SusWrite 48.7
30% 40.9 MB/s
4K Read 0.3
4K Write 1.1
4K Mixed 0.3
66% 0.57 MB/s

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 53,361,587 HDDs tested

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  • Best user rated - User sentiment trumps benchmarks for this comparison.
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  • Fastest real world speed - Real World Speed measures performance for typical consumers.

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