TEST
YOUR USB

JMicron (ExtHD)

Generic 120GB

▲ 503 ▼

Release date ≈ Q2 2017.

Average Bench: 102% (5th of 639)

Based on 70 user benchmarks.  Device: VID 152d PID 0578 Model: JMicron Generic
Poor: 12%Average: 102% Great: 199%

Outstanding average bench

The JMicron Generic 120GB averaged 1.6% higher than the peak scores attained by the group leaders. This is an excellent result which ranks the JMicron Generic 120GB near the top of the comparison list.

Strengths

Avg. 4K-64Thread Write Speed 36.5MB/s
Avg. 4K Random Write Speed 18.5MB/s

Terrible consistency

The range of scores (95th - 5th percentile) for the JMicron Generic 120GB is 187%. This is a particularly wide range which indicates that the JMicron Generic 120GB performs inconsistently under varying real world conditions.

Weaknesses

Avg. Sequential Read Speed 152MB/s
Avg. Sustained Write Speed 76.7MB/s
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Average Bench

(Based on 70 samples)
Rank 5102%
Min Avg Max
18.6 Read 152 326
19.5 Write 107 272
13.2 Mixed 95 239
17.6 SusWrite 76.7 196
137% 108 MB/s
Min Avg Max
0.4 4K Read 13 26.1
1.06 4K Write 18.5 42.3
0.56 4K Mixed 9.64 24.6
1,007% 13.7 MB/s
Min Avg Max
9.44 DQ Read 20.7 31
13.1 DQ Write 36.5 58.2
3.88 DQ Mixed 16.4 36.3
1,878% 24.6 MB/s
User Benchmarks BenchSequentialRandom 4kDeep queue 4k
The fastest USB (mainstream) averages a speed of 100%
108GB free, PID 0578
Operating at USB 3.0 Speed
SusWrite @10s intervals: 186 187 159 159 159 159 MB/s
151% Outstanding
Read 266
Write 220
Mixed 234
SusWrite 168
294% 222 MB/s
4K Read 19.9
4K Write 23.2
4K Mixed 21.2
1,584% 21.4 MB/s
DQ Read 25.8
DQ Write 35.6
DQ Mixed 29.2
2,300% 30.2 MB/s
18GB free, PID 0578
Operating at USB 3.0 Speed
SusWrite @10s intervals: 92 84 83 83 78 81 MB/s
91.4% Outstanding
Read 120
Write 107
Mixed 97.8
SusWrite 83.5
136% 102 MB/s
4K Read 12.2
4K Write 17.2
4K Mixed 14.8
1,134% 14.7 MB/s
DQ Read 22.5
DQ Write 50.9
DQ Mixed 21.1
2,532% 31.5 MB/s
26GB free, PID 0578
Operating at USB 2.1 Speed
SusWrite @10s intervals: 38 38 38 35 13 13 MB/s
58.7% Above average
Read 51.2
Write 37.6
Mixed 39
SusWrite 29.2
51% 39.2 MB/s
4K Read 17.2
4K Write 13.3
4K Mixed 13.5
975% 14.7 MB/s
DQ Read 14.9
DQ Write 19.6
DQ Mixed 15.9
1,263% 16.8 MB/s
37GB free, PID 0578
Operating at USB 2.1 Speed
SusWrite @10s intervals: 26 24 20 20 20 20 MB/s
31.4% Below average
Read 32.6
Write 22.8
Mixed 26
SusWrite 21.5
34% 25.7 MB/s
4K Read 7.2
4K Write 6.6
4K Mixed 6.7
479% 6.83 MB/s
12GB free, PID 0578
Operating at USB 2.1 Speed
SusWrite @10s intervals: 29 31 31 27 31 31 MB/s
14.4% Very poor
Read 32.2
Write 28.3
Mixed 17.7
SusWrite 30.1
36% 27.1 MB/s
4K Read 0.6
4K Write 1
4K Mixed 0.7
60% 0.77 MB/s
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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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