TEST
YOUR USB

WD (ExtHD)

My Book 1230 4TB

▲ 503 ▼

Release date ≤ Q1 2014.

Average Bench: 40.3% (43rd of 639)

Based on 10,879 user benchmarks.  Device: VID 1058 PID 1230 Model: WD My Book 1230
Poor: 14%Average: 40.3% Great: 60%

Below average average bench

The WD My Book 1230 4TB averaged 59.6% 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 2.09MB/s
Avg. Sequential Write Speed 94.9MB/s

Average consistency

The range of scores (95th - 5th percentile) for the WD My Book 1230 4TB is 46.4%. This is a relatively wide range which indicates that the WD My Book 1230 4TB performs inconsistently under varying real world conditions.

Weaknesses

Avg. 4K Random Read Speed 0.86MB/s
Avg. Sequential Read Speed 95.3MB/s
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Average Bench

(Based on 10,879 samples)
Rank 4340.3%
Min Avg Max
29 Read 95.3 147
25.8 Write 94.9 147
24.1 Mixed 65.4 95.6
16.3 SusWrite 91.2 149
117% 86.7 MB/s
Min Avg Max
0.6 4K Read 0.86 1
1.4 4K Write 2.09 2.5
0.7 4K Mixed 0.89 1
105% 1.28 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest USB (mainstream) averages a speed of 100%
1.5TB free, PID 1230
Operating at USB 3.0 Speed
SusWrite @10s intervals: 142 142 139 139 140 145 MB/s
56.6% Above average
Read 132
Write 130
Mixed 69.8
SusWrite 141
159% 118 MB/s
4K Read 0.9
4K Write 2.1
4K Mixed 0.9
105% 1.3 MB/s
3TB free, PID 1230
Operating at USB 3.0 Speed
SusWrite @10s intervals: 115 115 116 121 118 115 MB/s
54.2% Above average
Read 146
Write 126
Mixed 81.9
SusWrite 117
155% 118 MB/s
4K Read 0.9
4K Write 2.4
4K Mixed 0.9
116% 1.4 MB/s
1.5TB free, PID 1230
Operating at USB 3.0 Speed
SusWrite @10s intervals: 116 115 116 117 117 116 MB/s
47.8% Average
Read 113
Write 113
Mixed 91.6
SusWrite 116
148% 108 MB/s
4K Read 1
4K Write 1.9
4K Mixed 0.9
99% 1.27 MB/s
3.5TB free, PID 1230
Operating at USB 2.1 Speed
SusWrite @10s intervals: 14 14 14 14 14 15 MB/s
14.7% Very poor
Read 32.4
Write 31.4
Mixed 26.8
SusWrite 14
34% 26.2 MB/s
4K Read 0.8
4K Write 2.2
4K Mixed 0.9
108% 1.3 MB/s
89GB free, PID 1230
Operating at USB 3.0 Speed
SusWrite @10s intervals: 6.5 6.6 6.5 6.5 6.6 6.9 MB/s
13.9% Very poor
Read 33.6
Write 33.6
Mixed 28.6
SusWrite 6.6
33% 25.6 MB/s
4K Read 0.8
4K Write 2.4
4K Mixed 1
119% 1.4 MB/s
13GB free, PID 1230
Operating at USB 2.1 Speed
SusWrite @10s intervals: 19 19 19 19 19 19 MB/s
12.4% Very poor
Read 29.4
Write 29.2
Mixed 25.8
SusWrite 18.6
34% 25.7 MB/s
4K Read 0.3
4K Write 1.3
4K Mixed 0.6
66% 0.73 MB/s
10,879 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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