TEST
YOUR USB

ADATA (ExtHD)

HD770G 2TB

▲ 500 ▼

Release date ≈ Q1 2020.

Average Bench: 37.4% (52nd of 639)

Based on 275 user benchmarks.  Device: VID 125f PID a93a Model: ADATA HD770G
Poor: 14%Average: 37.4% Great: 55%

Poor average bench

The ADATA HD770G 2TB averaged 62.5% 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-64Thread Write Speed 8.3MB/s
Avg. 4K Random Write Speed 1.77MB/s

Average consistency

The range of scores (95th - 5th percentile) for the ADATA HD770G 2TB is 41.3%. This is a relatively wide range which indicates that the ADATA HD770G 2TB performs inconsistently under varying real world conditions.

Weaknesses

Avg. 4K-64Thread Read Speed 0.4MB/s
Avg. 4K Random Read Speed 1.01MB/s
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Average Bench

(Based on 275 samples)
Rank 5237.4%
Min Avg Max
27 Read 81.5 134
29.2 Write 90.2 128
24.5 Mixed 66.8 92
28 SusWrite 91.4 129
113% 82.5 MB/s
Min Avg Max
0.5 4K Read 1.01 1.82
0.3 4K Write 1.77 4.5
0.2 4K Mixed 0.66 1.1
86.3% 1.14 MB/s
Min Avg Max
0.4 DQ Read 0.4 0.4
8.3 DQ Write 8.3 8.3
0.6 DQ Mixed 0.6 0.6
304% 3.1 MB/s
User Benchmarks BenchSequentialRandom 4kDeep queue 4k
The fastest USB (mainstream) averages a speed of 100%
695GB free, PID a93a
Operating at USB 3.0 Speed
SusWrite @10s intervals: 112 115 117 119 104 113 MB/s
41.4% Average
Read 86.4
Write 115
Mixed 84.4
SusWrite 113
140% 99.8 MB/s
4K Read 0.6
4K Write 1.3
4K Mixed 0.6
67% 0.83 MB/s
943GB free, PID a93a
Operating at USB 3.0 Speed
SusWrite @10s intervals: 91 108 108 105 106 102 MB/s
36.1% Below average
Read 86.7
Write 106
Mixed 85
SusWrite 103
133% 95.2 MB/s
4K Read 0.6
4K Write 0.3
4K Mixed 0.9
43% 0.6 MB/s
895GB free, PID a93a
Operating at USB 3.0 Speed
SusWrite @10s intervals: 104 107 107 106 107 104 MB/s
35.2% Below average
Read 76.6
Write 109
Mixed 84
SusWrite 106
133% 93.8 MB/s
4K Read 0.6
4K Write 0.3
4K Mixed 1
46% 0.63 MB/s
943GB free, PID a93a
Operating at USB 3.0 Speed
SusWrite @10s intervals: 111 110 110 108 108 106 MB/s
33.9% Below average
Read 62.5
Write 112
Mixed 84.9
SusWrite 109
133% 92 MB/s
4K Read 0.6
4K Write 0.3
4K Mixed 0.9
43% 0.6 MB/s
1.5TB free, PID a93a
Operating at USB 2.1 Speed
SusWrite @10s intervals: 11 0 3.8 21 29 39 MB/s
19% Very poor
Read 49.8
Write 39.2
Mixed 31.3
SusWrite 17.2
44% 34.4 MB/s
4K Read 1.5
4K Write 2.5
4K Mixed 0.9
121% 1.63 MB/s
275 MORE »
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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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