TEST
YOUR USB

(ExtHD)

JMicron 256GB

▲ 500 ▼

Release date ≈ Q4 2019.

Average Bench: 112% (5th of 639)

Based on 3 user benchmarks.  Device: VID 2164 PID 3201 Model: JMicron
Poor: 24%Average: 112% Great: 162%

Outstanding average bench

The JMicron 256GB averaged 12.5% higher than the peak scores attained by the group leaders. This is an excellent result which ranks the JMicron 256GB near the top of the comparison list.

Strengths

Avg. 4K-64Thread Write Speed 25.8MB/s
Avg. 4K Random Write Speed 18.6MB/s

Unknown consistency

There are too few samples to reasonably determine how consistently this USB perfroms. This result should be interpreted with caution.

Weaknesses

Avg. Sequential Write Speed 79.1MB/s
Avg. Sustained Write Speed 79.4MB/s
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Average Bench

(Based on 3 samples)
Rank 5112%
Min Avg Max
29.6 Read 242 391
19.8 Write 79.1 168
23 Mixed 97.1 182
23.1 SusWrite 79.4 166
143% 124 MB/s
Min Avg Max
5.9 4K Read 12.5 16.8
4.3 4K Write 18.6 26.1
4.7 4K Mixed 9.97 13
1017% 13.7 MB/s
Min Avg Max
16 DQ Read 16.6 17.3
25.3 DQ Write 25.8 26.3
12.3 DQ Mixed 12.6 12.9
1,368% 18.3 MB/s
User Benchmarks BenchSequentialRandom 4kDeep queue 4k
The fastest USB (mainstream) averages a speed of 100%
182GB free, PID 3201
Operating at USB 3.0 Speed
SusWrite @10s intervals: 163 160 164 168 171 167 MB/s
162% Outstanding
Read 307
Write 168
Mixed 182
SusWrite 166
258% 206 MB/s
4K Read 14.9
4K Write 25.3
4K Mixed 12.2
1,331% 17.5 MB/s
DQ Read 16
DQ Write 25.3
DQ Mixed 12.3
1,338% 17.9 MB/s
28GB free, PID 3201
Operating at USB 3.0 Speed
SusWrite @10s intervals: 49 49 49 49 49 49 MB/s
152% Outstanding
Read 391
Write 49.5
Mixed 86.1
SusWrite 49.4
139% 144 MB/s
4K Read 16.8
4K Write 26.1
4K Mixed 13
1,392% 18.6 MB/s
DQ Read 17.3
DQ Write 26.3
DQ Mixed 12.9
1,398% 18.8 MB/s
158GB free, PID 3201
Operating at USB 2.1 Speed
SusWrite @10s intervals: 25 24 24 22 22 22 MB/s
23.9% Poor
Read 29.6
Write 19.8
Mixed 23
SusWrite 23.1
31% 23.9 MB/s
4K Read 5.9
4K Write 4.3
4K Mixed 4.7
328% 4.97 MB/s
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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.

 Comments

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 Frequently Asked Questions

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Intel Core i5-12600K $174Nvidia RTX 4060 $293Crucial MX500 250GB $39
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Intel Core i5-13600K $260Nvidia RTX 4070 $549Samsung 870 Evo 250GB $50
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WD Blue 1TB (2012) $29Corsair Vengeance LPX DDR4 3000 C15 2x8GB $45SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $62G.SKILL Trident Z DDR4 3200 C14 4x16GB $351SanDisk Ultra Fit 32GB $16
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