TEST
YOUR USB

(ExtHD)

JMicron 500GB

▲ 500 ▼

Release date ≈ Q4 2018.

Average Bench: 65.9% (8th of 639)

Based on 16 user benchmarks.  Device: VID 152d PID 2578 Model: JMicron
Poor: 14%Average: 65.9% Great: 179%

Above average average bench

The JMicron 500GB averaged 34.1% 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 30.7MB/s
Avg. 4K-64Thread Mixed IO Speed 27.1MB/s

Terrible consistency

The range of scores (95th - 5th percentile) for the JMicron 500GB is 165%. This is a particularly wide range which indicates that the JMicron 500GB performs inconsistently under varying real world conditions.

Weaknesses

Avg. 4K Random Read Speed 6.47MB/s
Avg. Sequential Read Speed 128MB/s
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Average Bench

(Based on 16 samples)
Rank 865.9%
Min Avg Max
18.5 Read 128 312
17.2 Write 110 314
16.8 Mixed 92 270
16.6 SusWrite 106 320
145% 109 MB/s
Min Avg Max
0.2 4K Read 6.47 24.8
0.4 4K Write 7.37 26
0.2 4K Mixed 6.53 25.3
497% 6.79 MB/s
Min Avg Max
22.9 DQ Read 25.1 26
26 DQ Write 30.7 35.2
25.9 DQ Mixed 27.1 27.9
2,057% 27.6 MB/s
User Benchmarks BenchSequentialRandom 4kDeep queue 4k
The fastest USB (mainstream) averages a speed of 100%
134GB free, PID 2578
Operating at USB 3.0 Speed
SusWrite @10s intervals: 154 230 234 236 236 236 MB/s
179% Outstanding
Read 312
Write 234
Mixed 256
SusWrite 221
337% 255 MB/s
4K Read 24.8
4K Write 26
4K Mixed 25.3
1,837% 25.4 MB/s
DQ Read 26
DQ Write 26
DQ Mixed 25.9
1,862% 26 MB/s
134GB free, PID 2578
Operating at USB 3.0 Speed
SusWrite @10s intervals: 130 220 224 203 212 209 MB/s
158% Outstanding
Read 287
Write 180
Mixed 211
SusWrite 200
285% 220 MB/s
4K Read 20.7
4K Write 22.2
4K Mixed 21.2
1,553% 21.4 MB/s
DQ Read 25.7
DQ Write 30.7
DQ Mixed 27.1
2,061% 27.8 MB/s
134GB free, PID 2578
Operating at USB 3.0 Speed
SusWrite @10s intervals: 132 210 216 208 214 211 MB/s
158% Outstanding
Read 288
Write 183
Mixed 212
SusWrite 198
286% 220 MB/s
4K Read 20.8
4K Write 22.2
4K Mixed 21.3
1,557% 21.4 MB/s
DQ Read 25.8
DQ Write 30.8
DQ Mixed 27.9
2,092% 28.2 MB/s
221GB free, PID 2578
Operating at USB 3.0 Speed
SusWrite @10s intervals: 47 57 58 58 58 57 MB/s
28.1% Poor
Read 73
Write 78.2
Mixed 46
SusWrite 55.8
84% 63.2 MB/s
4K Read 0.5
4K Write 1.7
4K Mixed 0.9
90% 1.03 MB/s
16 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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