TEST
YOUR USB

ST8000DM (ExtHD)

004-2CX188 8TB

▲ 500 ▼

Release date ≈ Q1 2019.

Average Bench: 56.2% (20th of 639)

Based on 10 user benchmarks.  Device: VID 2109 PID 0715 Model: ST8000DM 004-2CX188
Poor: 36%Average: 56.2% Great: 65%

Average average bench

The ST8000DM 004-2CX188 8TB averaged 43.8% 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 Random Write Speed 4.89MB/s
Avg. Sustained Write Speed 123MB/s

Good consistency

The range of scores (95th - 5th percentile) for the ST8000DM 004-2CX188 8TB is 29.6%. This is a relatively narrow range which indicates that the ST8000DM 004-2CX188 8TB performs reasonably consistently under varying real world conditions.

Weaknesses

Avg. 4K Random Read Speed 2.96MB/s
Avg. Sequential Read Speed 93.7MB/s
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Average Bench

(Based on 10 samples)
Rank 2056.2%
Min Avg Max
16 Read 93.7 143
80 Write 119 166
24.7 Mixed 88.9 134
29.3 SusWrite 123 179
149% 106 MB/s
Min Avg Max
0.5 4K Read 2.96 7
4.4 4K Write 4.89 6
0.4 4K Mixed 0.62 0.7
198% 2.82 MB/s
User Benchmarks BenchSequentialRandom 4kDeep queue 4k
The fastest USB (mainstream) averages a speed of 100%
29GB free, PID 0715
Operating at USB 3.1 Speed
SusWrite @10s intervals: 150 151 159 166 159 152 MB/s
65.3% Good
Read 115
Write 118
Mixed 112
SusWrite 156
174% 125 MB/s
4K Read 3.5
4K Write 4.5
4K Mixed 0.7
190% 2.9 MB/s
3.5TB free, PID 0715
Operating at USB 3.1 Speed
SusWrite @10s intervals: 145 148 154 154 152 150 MB/s
65.3% Good
Read 120
Write 129
Mixed 113
SusWrite 150
178% 128 MB/s
4K Read 4.2
4K Write 4.6
4K Mixed 0.7
196% 3.17 MB/s
3TB free, PID 0715
Operating at USB 3.1 Speed
SusWrite @10s intervals: 121 131 133 134 132 130 MB/s
60.4% Good
Read 125
Write 143
Mixed 77.2
SusWrite 130
161% 119 MB/s
4K Read 1.6
4K Write 4.4
4K Mixed 0.6
176% 2.2 MB/s
5TB free, PID 0715
SusWrite @10s intervals: 98 98 98 95 102 99 MB/s
46.2% Average
Read 63.2
Write 121
Mixed 56.5
SusWrite 98.3
121% 84.7 MB/s
4K Read 1.2
4K Write 5
4K Mixed 0.6
195% 2.27 MB/s
2.5TB free, PID 0715
Operating at USB 3.1 Speed
SusWrite @10s intervals: 18 31 31 32 32 31 MB/s
42.1% Average
Read 143
Write 107
Mixed 134
SusWrite 29.3
132% 103 MB/s
4K Read 4
4K Write 4.6
4K Mixed 0.7
195% 3.1 MB/s
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  • Fastest real world speed - Real World Speed measures performance for typical consumers.

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