TEST
YOUR USB

JMicron (ExtHD)

Generic 500GB

▲ 502 ▼

Release date ≈ Q2 2014.

Average Bench: 64.3% (9th of 639)

Based on 303 user benchmarks.  Device: VID 152d PID 0567 Model: JMicron Generic
Poor: 11%Average: 64.3% Great: 222%

Above average average bench

The JMicron Generic 500GB averaged 35.6% 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 33.3MB/s
Avg. 4K-64Thread Mixed IO Speed 22.6MB/s

Terrible consistency

The range of scores (95th - 5th percentile) for the JMicron Generic 500GB is 211%. This is a particularly wide range which indicates that the JMicron Generic 500GB performs inconsistently under varying real world conditions.

Weaknesses

Avg. 4K Random Read Speed 5.3MB/s
Avg. Sequential Read Speed 114MB/s
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Average Bench

(Based on 303 samples)
Rank 964.3%
Min Avg Max
25.4 Read 114 373
19.1 Write 110 378
9.87 Mixed 87.1 348
17.9 SusWrite 120 373
147% 108 MB/s
Min Avg Max
0.28 4K Read 5.3 23.8
0.4 4K Write 7.52 26
0.14 4K Mixed 5.2 24.1
452% 6 MB/s
Min Avg Max
10.1 DQ Read 22 29.1
17.8 DQ Write 33.3 53.7
10.6 DQ Mixed 22.6 30.9
1,982% 26 MB/s
User Benchmarks BenchSequentialRandom 4kDeep queue 4k
The fastest USB (mainstream) averages a speed of 100%
130GB free, PID 0567
Operating at USB 3.0 Speed
SusWrite @10s intervals: 125 148 152 150 58 58 MB/s
128% Outstanding
Read 196
Write 169
Mixed 188
SusWrite 115
222% 167 MB/s
4K Read 17.9
4K Write 22.9
4K Mixed 16.9
1,420% 19.2 MB/s
DQ Read 22.2
DQ Write 36.3
DQ Mixed 22.4
2,079% 27 MB/s
130GB free, PID 0567
Operating at USB 3.0 Speed
SusWrite @10s intervals: 117 167 168 147 58 59 MB/s
127% Outstanding
Read 193
Write 177
Mixed 185
SusWrite 119
226% 169 MB/s
4K Read 17.9
4K Write 22.3
4K Mixed 16.5
1,386% 18.9 MB/s
DQ Read 22.4
DQ Write 36.4
DQ Mixed 22.8
2,097% 27.2 MB/s
303 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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