TEST
YOUR USB

JMicron (ExtHD)

Generic 480GB

▲ 500 ▼

Release date ≈ Q1 2015.

Average Bench: 155% (1st of 639)

Based on 59 user benchmarks.  Device: VID 152d PID 0567 Model: JMicron Generic
Poor: 33%Average: 155% Great: 231%

Outstanding average bench

The JMicron Generic 480GB averaged 55.4% higher than the peak scores attained by the group leaders. This is an excellent result which ranks the JMicron Generic 480GB near the top of the comparison list.

Strengths

Avg. 4K-64Thread Write Speed 31.1MB/s
Avg. 4K Random Write Speed 21.2MB/s

Terrible consistency

The range of scores (95th - 5th percentile) for the JMicron Generic 480GB is 198%. This is a particularly wide range which indicates that the JMicron Generic 480GB performs inconsistently under varying real world conditions.

Weaknesses

Avg. Sequential Read Speed 240MB/s
Avg. 4K Random Read Speed 15.8MB/s
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Average Bench

(Based on 59 samples)
Rank 1155%
Min Avg Max
20.5 Read 240 388
19.3 Write 254 403
19.7 Mixed 187 307
23.5 SusWrite 249 406
317% 232 MB/s
Min Avg Max
6.5 4K Read 15.8 21.4
6.4 4K Write 21.2 35.7
3.76 4K Mixed 14.5 22.3
1,273% 17.2 MB/s
Min Avg Max
9.31 DQ Read 19.4 24.1
14.6 DQ Write 31.1 43
9.05 DQ Mixed 18.2 26.4
1,748% 22.9 MB/s
User Benchmarks BenchSequentialRandom 4kDeep queue 4k
The fastest USB (mainstream) averages a speed of 100%
106GB free, PID 0567
Operating at USB 3.0 Speed
SusWrite @10s intervals: 403 403 406 408 405 405 MB/s
219% Outstanding
Read 321
Write 403
Mixed 298
SusWrite 405
498% 357 MB/s
4K Read 20
4K Write 26
4K Mixed 21.3
1,683% 22.4 MB/s
DQ Read 21.7
DQ Write 37.4
DQ Mixed 25.2
2,210% 28.1 MB/s
447GB free, PID 0567
Operating at USB 3.0 Speed
SusWrite @10s intervals: 314 304 303 301 301 298 MB/s
203% Outstanding
Read 357
Write 339
Mixed 265
SusWrite 304
424% 316 MB/s
4K Read 17.9
4K Write 26.2
4K Mixed 19.6
1,624% 21.2 MB/s
DQ Read 20.6
DQ Write 27.2
DQ Mixed 24.2
1,825% 24 MB/s
64GB free, PID 0567
Operating at USB 3.0 Speed
SusWrite @10s intervals: 256 197 232 242 256 271 MB/s
181% Outstanding
Read 349
Write 271
Mixed 177
SusWrite 242
335% 260 MB/s
4K Read 14
4K Write 24.3
4K Mixed 17.3
1,467% 18.5 MB/s
DQ Read 19
DQ Write 26.1
DQ Mixed 14.7
1,458% 19.9 MB/s
131GB free, PID 0567
Operating at USB 3.0 Speed
SusWrite @10s intervals: 357 363 358 360 245 27 MB/s
157% Outstanding
Read 159
Write 275
Mixed 264
SusWrite 285
358% 246 MB/s
4K Read 13.8
4K Write 22.3
4K Mixed 14
1,286% 16.7 MB/s
DQ Read 18.2
DQ Write 36
DQ Mixed 16
1,836% 23.4 MB/s
447GB free, PID 0567
Operating at USB 3.0 Speed
SusWrite @10s intervals: 169 25 6.6 59 48 6.7 MB/s
102% Outstanding
Read 318
Write 313
Mixed 191
SusWrite 52.5
276% 219 MB/s
4K Read 9.3
4K Write 13.7
4K Mixed 10.8
868% 11.3 MB/s
DQ Read 12.1
DQ Write 18
DQ Mixed 11
1,031% 13.7 MB/s
173GB free, PID 0567
Operating at USB 3.0 Speed
SusWrite @10s intervals: 48 22 24 25 22 37 MB/s
16.4% Very poor
Read 34.4
Write 40.7
Mixed 33.8
SusWrite 29.6
48% 34.6 MB/s
4K Read 2.9
4K Write 1.4
4K Mixed 0.8
86% 1.7 MB/s
59 MORE »
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  • Fastest real world speed - Real World Speed measures performance for typical consumers.

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