TEST
YOUR USB

ST4000DM (ExtHD)

004-2CV104 4TB

▲ 500 ▼

Release date ≈ Q3 2018.

Average Bench: 31.8% (79th of 639)

Based on 28 user benchmarks.  Device: VID null PID null Model: ST4000DM 004-2CV104
Poor: 12%Average: 31.8% Great: 61%

Poor average bench

The ST4000DM 004-2CV104 4TB averaged 68.1% 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 2.62MB/s
Avg. Sequential Write Speed 106MB/s

Average consistency

The range of scores (95th - 5th percentile) for the ST4000DM 004-2CV104 4TB is 48.2%. This is a relatively wide range which indicates that the ST4000DM 004-2CV104 4TB performs inconsistently under varying real world conditions.

Weaknesses

Avg. 4K Random Read Speed 3.28MB/s
Avg. Sequential Read Speed 86.5MB/s
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Average Bench

(Based on 28 samples)
Rank 7931.8%
Min Avg Max
22.6 Read 86.5 164
23.1 Write 106 169
23.8 Mixed 73.3 116
1.1 SusWrite 48 167
106% 78.5 MB/s
Min Avg Max
0.5 4K Read 3.28 10.7
0.7 4K Write 2.62 6.2
0.1 4K Mixed 0.57 1
121% 2.16 MB/s
User Benchmarks BenchSequentialRandom 4kDeep queue 4k
The fastest USB (mainstream) averages a speed of 100%
373GB free, PID null
SusWrite @10s intervals: 161 163 160 159 160 162 MB/s
63.6% Good
Read 91.9
Write 122
Mixed 112
SusWrite 161
174% 122 MB/s
4K Read 4.7
4K Write 4.6
4K Mixed 0.6
194% 3.3 MB/s
16GB free, PID null
SusWrite @10s intervals: 152 154 154 154 154 153 MB/s
56.7% Above average
Read 134
Write 159
Mixed 128
SusWrite 153
199% 144 MB/s
4K Read 6.1
4K Write 0.8
4K Mixed 0.4
63% 2.43 MB/s
189GB free, PID null
SusWrite @10s intervals: 32 12 12 23 12 24 MB/s
21% Poor
Read 96.6
Write 111
Mixed 81.7
SusWrite 19
101% 77 MB/s
4K Read 3
4K Write 0.7
4K Mixed 0.3
45% 1.33 MB/s
1.5TB free, PID null
SusWrite @10s intervals: 0 0.1 0 0 0.1 1.6 MB/s
17.3% Very poor
Read 92.7
Write 121
Mixed 107
SusWrite 0.3
107% 80.3 MB/s
4K Read 5.7
4K Write 0.8
4K Mixed 0.3
58% 2.27 MB/s
28 MORE »
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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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