TEST
YOUR USB

(ExtHD)

JMicron 1TB

▲ 500 ▼

Release date ≈ Q3 2017.

Average Bench: 43.5% (33rd of 639)

Based on 18 user benchmarks.  Device: VID 152d PID 2578 Model: JMicron
Poor: 13%Average: 43.5% Great: 75%

Below average average bench

The JMicron 1TB averaged 56.5% 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 64.7MB/s
Avg. 4K-64Thread Mixed IO Speed 42.6MB/s

Poor consistency

The range of scores (95th - 5th percentile) for the JMicron 1TB is 62.2%. This is a particularly wide range which indicates that the JMicron 1TB performs inconsistently under varying real world conditions.

Weaknesses

Avg. 4K Random Read Speed 2.18MB/s
Avg. Sequential Read Speed 86.4MB/s
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Average Bench

(Based on 18 samples)
Rank 3343.5%
Min Avg Max
25.8 Read 86.4 334
18 Write 79.5 327
13 Mixed 60.8 298
20.7 SusWrite 79.8 298
103% 76.6 MB/s
Min Avg Max
0.38 4K Read 2.18 27.8
0.5 4K Write 4.09 47.2
0.16 4K Mixed 2.36 32.7
227% 2.88 MB/s
Min Avg Max
33.4 DQ Read 33.4 33.4
64.7 DQ Write 64.7 64.7
42.6 DQ Mixed 42.6 42.6
3,773% 46.9 MB/s
User Benchmarks BenchSequentialRandom 4kDeep queue 4k
The fastest USB (mainstream) averages a speed of 100%
742GB free, PID 2578
Operating at USB 3.0 Speed
SusWrite @10s intervals: 96 101 101 101 101 102 MB/s
45.1% Average
Read 108
Write 70.4
Mixed 56.8
SusWrite 100
109% 83.9 MB/s
4K Read 0.5
4K Write 2.4
4K Mixed 0.9
114% 1.27 MB/s
700GB free, PID 2578
Operating at USB 3.0 Speed
SusWrite @10s intervals: 87 99 99 99 99 99 MB/s
43.4% Average
Read 104
Write 72.2
Mixed 61.5
SusWrite 97.2
110% 83.6 MB/s
4K Read 0.6
4K Write 2.3
4K Mixed 0.9
111% 1.27 MB/s
542GB free, PID 2578
Operating at USB 3.0 Speed
SusWrite @10s intervals: 90 85 90 90 90 90 MB/s
37.6% Below average
Read 90
Write 90
Mixed 66
SusWrite 89.2
114% 83.8 MB/s
4K Read 1
4K Write 1.6
4K Mixed 0.7
82% 1.1 MB/s
475GB free, PID 2578
Operating at USB 3.0 Speed
SusWrite @10s intervals: 58 73 73 71 68 69 MB/s
32.2% Below average
Read 83.9
Write 74.9
Mixed 31
SusWrite 68.8
84% 64.7 MB/s
4K Read 0.5
4K Write 1.6
4K Mixed 0.8
84% 0.97 MB/s
466GB free, PID 2578
Operating at USB 2.1 Speed
SusWrite @10s intervals: 44 44 44 44 44 44 MB/s
19.4% Very poor
Read 45.1
Write 43.4
Mixed 35.3
SusWrite 44.2
57% 42 MB/s
4K Read 0.6
4K Write 1
4K Mixed 0.5
53% 0.7 MB/s
232GB free, PID 2578
Operating at USB 2.1 Speed
SusWrite @10s intervals: 39 39 39 40 39 40 MB/s
19.4% Very poor
Read 39.7
Write 37.3
Mixed 27.8
SusWrite 39.2
48% 36 MB/s
4K Read 0.6
4K Write 1.6
4K Mixed 0.7
80% 0.97 MB/s
612GB free, PID 2578
Operating at USB 2.1 Speed
SusWrite @10s intervals: 30 31 30 31 31 31 MB/s
14.3% Very poor
Read 30.4
Write 30.4
Mixed 25.5
SusWrite 30.6
40% 29.2 MB/s
4K Read 0.5
4K Write 1
4K Mixed 0.7
60% 0.73 MB/s
240GB free, PID 2578
Operating at USB 2.1 Speed
SusWrite @10s intervals: 26 27 24 25 25 25 MB/s
14% Very poor
Read 25.8
Write 26.3
Mixed 22.8
SusWrite 25.2
34% 25 MB/s
4K Read 0.5
4K Write 1.5
4K Mixed 0.6
73% 0.87 MB/s
466GB free, PID 2578
Operating at USB 2.1 Speed
SusWrite @10s intervals: 24 21 20 19 20 20 MB/s
12.6% Very poor
Read 26.6
Write 18.5
Mixed 21.1
SusWrite 20.7
29% 21.7 MB/s
4K Read 0.8
4K Write 1.3
4K Mixed 0.8
74% 0.97 MB/s
18 MORE »
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