TEST
YOUR USB

WD (ExtHD)

My Book 1230 4TB

▲ 501 ▼

Release date ≤ Q1 2014.

Average Bench: 41.8% (36th of 639)

Based on 6,665 user benchmarks.  Device: VID 1058 PID 1230 Model: WD My Book 1230
Poor: 15%Average: 41.8% Great: 60%

Below average average bench

The WD My Book 1230 4TB averaged 58.2% 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 2.1MB/s
Avg. Sequential Write Speed 100MB/s

Average consistency

The range of scores (95th - 5th percentile) for the WD My Book 1230 4TB is 45.2%. 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 0.87MB/s
Avg. Sequential Read Speed 100MB/s
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Average Bench

(Based on 6,665 samples)
Rank 3641.8%
Min Avg Max
30.2 Read 100 148
24.7 Write 100 150
23.7 Mixed 66.8 94.1
21.6 SusWrite 94.6 148
122% 90.4 MB/s
Min Avg Max
0.7 4K Read 0.87 1
1.46 4K Write 2.1 2.5
0.7 4K Mixed 0.9 1
105% 1.29 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest USB (mainstream) averages a speed of 100%
3.5TB free, PID 1230
Operating at USB 3.0 Speed
SusWrite @10s intervals: 135 129 125 140 124 140 MB/s
58% Above average
Read 154
Write 148
Mixed 79
SusWrite 132
170% 128 MB/s
4K Read 0.9
4K Write 2.2
4K Mixed 1
112% 1.37 MB/s
606GB free, PID 1230
Operating at USB 3.0 Speed
SusWrite @10s intervals: 120 122 121 121 122 121 MB/s
51.1% Above average
Read 126
Write 127
Mixed 94.5
SusWrite 121
159% 117 MB/s
4K Read 1
4K Write 2
4K Mixed 0.9
102% 1.3 MB/s
256GB free, PID 1230
Operating at USB 3.0 Speed
SusWrite @10s intervals: 82 81 81 82 82 82 MB/s
38.1% Below average
Read 91.7
Write 96.4
Mixed 67.9
SusWrite 81.6
114% 84.4 MB/s
4K Read 0.9
4K Write 2.2
4K Mixed 0.9
109% 1.33 MB/s
523GB free, PID 1230
Operating at USB 2.1 Speed
SusWrite @10s intervals: 22 23 22 22 22 22 MB/s
14.7% Very poor
Read 26.2
Write 19.3
Mixed 21
SusWrite 22.2
30% 22.2 MB/s
4K Read 0.8
4K Write 1.9
4K Mixed 0.9
98% 1.2 MB/s
2.5TB free, PID 1230
Operating at USB 2.1 Speed
SusWrite @10s intervals: 16 17 17 16 17 17 MB/s
13.8% Very poor
Read 26.2
Write 23.2
Mixed 24
SusWrite 16.7
30% 22.5 MB/s
4K Read 0.7
4K Write 2
4K Mixed 0.9
101% 1.2 MB/s
6,665 MORE »
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  • Fastest real world speed - Real World Speed measures performance for typical consumers.

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