TEST
YOUR USB

ASMedia (ExtHD)

ASM1153 256GB

▲ 500 ▼

Release date ≈ Q2 2017.

Average Bench: 91.8% (5th of 639)

Based on 7 user benchmarks.  Device: VID 174c PID 55aa Model: ASMedia ASM1153
Poor: 24%Average: 91.8% Great: 174%

Excellent average bench

The ASMedia ASM1153 256GB averaged just 8.1% lower than the peak scores attained by the group leaders. This is an excellent result which ranks the ASMedia ASM1153 256GB near the top of the comparison list.

Strengths

Avg. 4K-64Thread Write Speed 27MB/s
Avg. 4K Random Write Speed 15.1MB/s

Terrible consistency

The range of scores (95th - 5th percentile) for the ASMedia ASM1153 256GB is 150%. This is a particularly wide range which indicates that the ASMedia ASM1153 256GB performs inconsistently under varying real world conditions.

Weaknesses

Avg. Sustained Write Speed 53.1MB/s
Avg. Sequential Read Speed 145MB/s
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Average Bench

(Based on 7 samples)
Rank 591.8%
Min Avg Max
27.9 Read 145 253
21 Write 144 246
4.7 Mixed 106 220
28.4 SusWrite 53.1 100
146% 112 MB/s
Min Avg Max
4.1 4K Read 11.9 20.9
0.5 4K Write 15.1 25.9
0.1 4K Mixed 9.3 21.2
875% 12.1 MB/s
Min Avg Max
13.1 DQ Read 17.2 21
17.5 DQ Write 27 38.6
9.67 DQ Mixed 14.2 21.8
1,465% 19.5 MB/s
User Benchmarks BenchSequentialRandom 4kDeep queue 4k
The fastest USB (mainstream) averages a speed of 100%
66GB free, PID 55aa
Operating at USB 3.0 Speed
174% Outstanding
Read 253
Write 242
Mixed 218
302% 238 MB/s
4K Read 20.9
4K Write 25.9
4K Mixed 10
1,297% 18.9 MB/s
DQ Read 21
DQ Write 38.6
DQ Mixed 9.67
1,720% 23.1 MB/s
17GB free, PID 55aa
Operating at USB 3.0 Speed
SusWrite @10s intervals: 223 85 66 74 69 86 MB/s
141% Outstanding
Read 246
Write 246
Mixed 220
SusWrite 100
269% 203 MB/s
4K Read 19.2
4K Write 25.8
4K Mixed 21.2
1,670% 22.1 MB/s
DQ Read 20.2
DQ Write 26.1
DQ Mixed 21.8
1,704% 22.7 MB/s
25GB free, PID 55aa
Operating at USB 2.1 Speed
SusWrite @10s intervals: 39 38 39 39 39 39 MB/s
66.8% Good
Read 40.8
Write 38.1
Mixed 39.2
SusWrite 38.6
53% 39.2 MB/s
4K Read 11.5
4K Write 16.2
4K Mixed 13.7
1,060% 13.8 MB/s
DQ Read 13.1
DQ Write 17.5
DQ Mixed 14.9
1,151% 15.2 MB/s
82GB free (System drive), PID 55aa
Operating at USB 3.0 Speed
SusWrite @10s intervals: 4.5 183 1.7 22 26 32 MB/s
44.1% Average
Read 220
Write 216
Mixed 4.7
SusWrite 44.9
143% 121 MB/s
4K Read 4.1
4K Write 0.5
4K Mixed 0.1
36% 1.57 MB/s
203GB free, PID 55aa
Operating at USB 2.1 Speed
SusWrite @10s intervals: 29 28 28 28 28 28 MB/s
34.7% Below average
Read 32.5
Write 28.5
Mixed 29.7
SusWrite 28.4
40% 29.8 MB/s
4K Read 7.1
4K Write 7.2
4K Mixed 6.9
506% 7.07 MB/s
190GB free, PID 55aa
Operating at USB 2.1 Speed
24.3% Poor
Read 27.9
Write 21
Mixed 24
30% 24.3 MB/s
4K Read 4.64
4K Write 4.73
4K Mixed 2.73
271% 4.04 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.

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