TEST
YOUR USB

WD (ExtHD)

My Book 1235 6TB

▲ 500 ▼

Release date ≈ Q3 2016.

Average Bench: 49.1% (24th of 639)

Based on 444 user benchmarks.  Device: VID 1058 PID 1235 Model: WD My Book 1235
Poor: 16%Average: 49.1% Great: 69%

Below average average bench

The WD My Book 1235 6TB averaged 50.8% 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 2.46MB/s
Avg. Sequential Write Speed 115MB/s

Below average consistency

The range of scores (95th - 5th percentile) for the WD My Book 1235 6TB is 53.3%. This is a relatively wide range which indicates that the WD My Book 1235 6TB performs inconsistently under varying real world conditions.

Weaknesses

Avg. 4K Random Read Speed 0.89MB/s
Avg. Sequential Read Speed 118MB/s
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Average Bench

(Based on 444 samples)
Rank 2449.1%
Min Avg Max
29.7 Read 118 174
24.6 Write 115 165
24.5 Mixed 91.7 135
14.9 SusWrite 111 165
147% 109 MB/s
Min Avg Max
0.58 4K Read 0.89 1.1
1.63 4K Write 2.46 2.9
0.24 4K Mixed 0.8 1.1
114% 1.38 MB/s
User Benchmarks BenchSequentialRandom 4kDeep queue 4k
The fastest USB (mainstream) averages a speed of 100%
5.5TB free, PID 1235
Operating at USB 3.0 Speed
SusWrite @10s intervals: 175 175 174 175 175 174 MB/s
71.1% Very good
Read 169
Write 171
Mixed 130
SusWrite 175
219% 161 MB/s
4K Read 1
4K Write 2.7
4K Mixed 1.1
133% 1.6 MB/s
5.5TB free, PID 1235
Operating at USB 3.0 Speed
SusWrite @10s intervals: 156 173 175 175 174 174 MB/s
70.7% Very good
Read 169
Write 169
Mixed 126
SusWrite 171
216% 159 MB/s
4K Read 1.1
4K Write 2.8
4K Mixed 1.1
137% 1.67 MB/s
3.5TB free, PID 1235
Operating at USB 3.0 Speed
SusWrite @10s intervals: 139 137 139 139 139 138 MB/s
58.3% Above average
Read 140
Write 141
Mixed 97.2
SusWrite 138
175% 129 MB/s
4K Read 0.8
4K Write 2.5
4K Mixed 1
122% 1.43 MB/s
2.5TB free, PID 1235
Operating at USB 3.0 Speed
SusWrite @10s intervals: 128 131 132 132 132 132 MB/s
55.3% Above average
Read 127
Write 129
Mixed 106
SusWrite 131
168% 123 MB/s
4K Read 1.1
4K Write 2.6
4K Mixed 1
126% 1.57 MB/s
1.5TB free, PID 1235
Operating at USB 3.0 Speed
SusWrite @10s intervals: 109 109 109 110 106 109 MB/s
49.8% Average
Read 126
Write 124
Mixed 89.3
SusWrite 109
150% 112 MB/s
4K Read 0.8
4K Write 2.5
4K Mixed 0.9
119% 1.4 MB/s
3TB free, PID 1235
Operating at USB 3.0 Speed
SusWrite @10s intervals: 31 29 23 33 34 31 MB/s
13.8% Very poor
Read 49.9
Write 9.2
Mixed 12
SusWrite 29.9
29% 25.3 MB/s
4K Read 0.4
4K Write 0
4K Mixed 0.2
8% 0.2 MB/s
444 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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