TEST
YOUR USB

JMicron (ExtHD)

Tech 480GB

▲ 500 ▼

Release date ≈ Q1 2018.

Average Bench: 146% (1st of 639)

Based on 19 user benchmarks.  Device: VID 152d PID 0578 Model: JMicron Tech
Poor: 28%Average: 146% Great: 362%

Outstanding average bench

The JMicron Tech 480GB averaged 46.3% higher than the peak scores attained by the group leaders. This is an excellent result which ranks the JMicron Tech 480GB near the top of the comparison list.

Strengths

Avg. 4K-64Thread Write Speed 37.1MB/s
Avg. 4K Random Write Speed 24.2MB/s

Terrible consistency

The range of scores (95th - 5th percentile) for the JMicron Tech 480GB is 334%. This is a particularly wide range which indicates that the JMicron Tech 480GB performs inconsistently under varying real world conditions.

Weaknesses

Avg. Sequential Read Speed 215MB/s
Avg. 4K Random Read Speed 17.5MB/s
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Average Bench

(Based on 19 samples)
Rank 1146%
Min Avg Max
28.2 Read 215 408
22.5 Write 188 407
23.5 Mixed 175 387
27.7 SusWrite 175 406
252% 188 MB/s
Min Avg Max
2.99 4K Read 17.5 34.4
5.1 4K Write 24.2 72.3
2.33 4K Mixed 16.9 45.2
1,463% 19.5 MB/s
Min Avg Max
9.9 DQ Read 20.6 37.4
14.5 DQ Write 37.1 88
7.3 DQ Mixed 22.3 50.9
2,097% 26.7 MB/s
User Benchmarks BenchSequentialRandom 4kDeep queue 4k
The fastest USB (mainstream) averages a speed of 100%
351GB free, PID 0578
Operating at USB 3.0 Speed
SusWrite @10s intervals: 403 406 406 406 406 407 MB/s
378% Outstanding
Read 408
Write 407
Mixed 387
SusWrite 406
550% 402 MB/s
4K Read 34.4
4K Write 72.3
4K Mixed 45.2
4,124% 50.6 MB/s
DQ Read 37.4
DQ Write 88
DQ Mixed 50.9
4,863% 58.8 MB/s
351GB free, PID 0578
Operating at USB 3.0 Speed
SusWrite @10s intervals: 400 405 406 407 407 407 MB/s
362% Outstanding
Read 395
Write 394
Mixed 373
SusWrite 405
536% 391 MB/s
4K Read 31.5
4K Write 68.1
4K Mixed 43.7
3,920% 47.8 MB/s
DQ Read 36.9
DQ Write 86.1
DQ Mixed 49.5
4,749% 57.5 MB/s
274GB free, PID 0578
Operating at USB 3.0 Speed
SusWrite @10s intervals: 252 338 375 368 372 368 MB/s
211% Outstanding
Read 354
Write 362
Mixed 343
SusWrite 346
481% 351 MB/s
4K Read 21.9
4K Write 25.6
4K Mixed 23.4
1,748% 23.6 MB/s
DQ Read 26
DQ Write 38.8
DQ Mixed 29.8
2,430% 31.5 MB/s
351GB free, PID 0578
Operating at USB 3.0 Speed
SusWrite @10s intervals: 317 361 353 398 400 401 MB/s
207% Outstanding
Read 342
Write 351
Mixed 337
SusWrite 372
483% 350 MB/s
4K Read 21.5
4K Write 23.3
4K Mixed 22.4
1,634% 22.4 MB/s
DQ Read 25.8
DQ Write 30.2
DQ Mixed 27.7
2,065% 27.9 MB/s
320GB free, PID 0578
Operating at USB 3.0 Speed
SusWrite @10s intervals: 305 297 326 300 282 290 MB/s
179% Outstanding
Read 289
Write 275
Mixed 259
SusWrite 300
383% 281 MB/s
4K Read 14.3
4K Write 22.4
4K Mixed 8.1
1,090% 14.9 MB/s
DQ Read 11.9
DQ Write 31.5
DQ Mixed 9.9
1,452% 17.8 MB/s
351GB free, PID 0578
Operating at USB 2.1 Speed
SusWrite @10s intervals: 40 40 40 40 40 40 MB/s
64.6% Good
Read 49.8
Write 39.6
Mixed 39.1
SusWrite 39.8
56% 42.1 MB/s
4K Read 20.3
4K Write 14.3
4K Mixed 17.4
1,154% 17.3 MB/s
DQ Read 17.5
DQ Write 20.5
DQ Mixed 18.6
1,395% 18.9 MB/s
274GB free, PID 0578
Operating at USB 2.1 Speed
SusWrite @10s intervals: 43 43 43 43 43 43 MB/s
64.3% Good
Read 38.3
Write 39.5
Mixed 38.6
SusWrite 42.8
55% 39.8 MB/s
4K Read 19.3
4K Write 14.6
4K Mixed 17.2
1,153% 17 MB/s
DQ Read 16.5
DQ Write 20.2
DQ Mixed 18.1
1,364% 18.3 MB/s
351GB free, PID 0578
Operating at USB 2.1 Speed
SusWrite @10s intervals: 39 40 39 40 40 40 MB/s
63.4% Good
Read 39.8
Write 39.7
Mixed 39.1
SusWrite 39.6
54% 39.5 MB/s
4K Read 19.9
4K Write 14.4
4K Mixed 17.5
1,159% 17.3 MB/s
DQ Read 17.3
DQ Write 19.2
DQ Mixed 18
1,329% 18.2 MB/s
274GB free, PID 0578
Operating at USB 2.1 Speed
SusWrite @10s intervals: 37 36 36 36 36 36 MB/s
56.5% Above average
Read 53.1
Write 35.5
Mixed 36.9
SusWrite 36.1
52% 40.4 MB/s
4K Read 21.1
4K Write 11.7
4K Mixed 16.7
1,044% 16.5 MB/s
DQ Read 16.8
DQ Write 18.8
DQ Mixed 17.6
1,300% 17.7 MB/s
19 MORE »
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