TEST
YOUR USB

JMicron (ExtHD)

Generic 500GB

▲ 500 ▼

Release date ≈ Q1 2019.

Average Bench: 196% (1st of 639)

Based on 12 user benchmarks.  Device: VID 152d PID 0583 Model: JMicron Generic
Poor: 74%Average: 196% Great: 286%

Outstanding average bench

The JMicron Generic 500GB averaged 96.2% higher than the peak scores attained by the group leaders. This is an excellent result which ranks the JMicron Generic 500GB near the top of the comparison list.

Strengths

Avg. 4K-64Thread Write Speed 48.7MB/s
Avg. 4K-64Thread Mixed IO Speed 37.7MB/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. Sequential Read Speed 288MB/s
Avg. 4K Random Read Speed 23.9MB/s
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Average Bench

(Based on 12 samples)
Rank 1196%
Min Avg Max
39.9 Read 288 600
41 Write 241 534
40 Mixed 245 516
40.6 SusWrite 207 549
326% 245 MB/s
Min Avg Max
11.4 4K Read 23.9 32.7
9.2 4K Write 33.8 52.6
9.4 4K Mixed 25.9 36
2,116% 27.8 MB/s
Min Avg Max
8.7 DQ Read 31.2 42.1
16.1 DQ Write 48.7 89.7
16.6 DQ Mixed 37.7 53.1
3,054% 39.2 MB/s
User Benchmarks BenchSequentialRandom 4kDeep queue 4k
The fastest USB (mainstream) averages a speed of 100%
122GB free, PID 0583
Operating at USB 3.2 Speed
SusWrite @10s intervals: 368 359 352 350 341 343 MB/s
286% Outstanding
Read 586
Write 410
Mixed 457
SusWrite 352
587% 451 MB/s
4K Read 27.2
4K Write 38.2
4K Mixed 32.7
2,512% 32.7 MB/s
DQ Read 32.2
DQ Write 47.1
DQ Mixed 38
3,014% 39.1 MB/s
416GB free, PID 0583
SusWrite @10s intervals: 189 191 197 202 203 203 MB/s
189% Outstanding
Read 173
Write 183
Mixed 174
SusWrite 197
252% 182 MB/s
4K Read 28.1
4K Write 37.2
4K Mixed 31.7
2,448% 32.3 MB/s
DQ Read 34.9
DQ Write 52.9
DQ Mixed 38.3
3,232% 42 MB/s
132GB free, PID 0583
Operating at USB 3.2 Speed
SusWrite @10s intervals: 236 190 166 156 154 158 MB/s
160% Outstanding
Read 306
Write 242
Mixed 265
SusWrite 176
325% 247 MB/s
4K Read 18.8
4K Write 23.6
4K Mixed 20.7
1,576% 21 MB/s
DQ Read 24.5
DQ Write 27
DQ Mixed 26.3
1,904% 25.9 MB/s
12 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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