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WDC (ExtHD)

WD40 EZRX-22SPEB0 4TB

▲ 500 ▼

Release date ≈ Q4 2016.

Average Bench: 33.8% (65th of 639)

Based on 8 user benchmarks.  Device: VID 152d PID 0539 Model: WDC WD40 EZRX-22SPEB0
Poor: 17%Average: 33.8% Great: 53%

Poor average bench

The WDC WD40 EZRX-22SPEB0 4TB averaged 66.1% 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 1.95MB/s
Avg. Sequential Write Speed 97.8MB/s

Above average consistency

The range of scores (95th - 5th percentile) for the WDC WD40 EZRX-22SPEB0 4TB is 35.5%. This is a relatively wide range which indicates that the WDC WD40 EZRX-22SPEB0 4TB performs inconsistently under varying real world conditions.

Weaknesses

Avg. 4K Random Read Speed 0.87MB/s
Avg. Sustained Write Speed 39.3MB/s

Average Bench

(Based on 8 samples)
Rank 6533.8%
Min Avg Max
72.5 Read 98.9 124
75.3 Write 97.8 123
37.7 Mixed 66.1 96.5
0.2 SusWrite 39.3 131
98.1% 75.5 MB/s
Min Avg Max
0.8 4K Read 0.87 1
1.77 4K Write 1.95 2.3
0.24 4K Mixed 0.67 1
92.5% 1.17 MB/s
User Benchmarks BenchSequentialRandom 4kDeep queue 4k
The fastest USB (mainstream) averages a speed of 100%
100GB free, PID 0539
Operating at USB 3.0 Speed
SusWrite @10s intervals: 132 127 132 133 132 132 MB/s
52.8% Above average
Read 124
Write 123
Mixed 90.3
SusWrite 131
159% 117 MB/s
4K Read 1
4K Write 1.9
4K Mixed 0.9
99% 1.27 MB/s
61GB free, PID 0539
Operating at USB 3.0 Speed
48% Average
Read 117
Write 109
Mixed 98.6
137% 108 MB/s
4K Read 0.51
4K Write 2.3
4K Mixed 0.22
88% 1.01 MB/s
324GB free, PID 0539
Operating at USB 3.0 Speed
SusWrite @10s intervals: 59 62 48 61 62 60 MB/s
35.9% Below average
Read 114
Write 105
Mixed 64
SusWrite 58.8
110% 85.3 MB/s
4K Read 0.9
4K Write 2.1
4K Mixed 0.9
105% 1.3 MB/s
219GB free, PID 0539
Operating at USB 3.0 Speed
35.8% Below average
Read 88.7
Write 79.1
Mixed 37.7
82% 68.5 MB/s
4K Read 0.93
4K Write 1.77
4K Mixed 0.25
72% 0.98 MB/s
525GB free, PID 0539
Operating at USB 3.0 Speed
SusWrite @10s intervals: 0.5 0.3 0.1 0.1 0 MB/s
23.3% Poor
Read 110
Write 110
Mixed 58.2
SusWrite 0.2
86% 69.7 MB/s
4K Read 0.9
4K Write 2.3
4K Mixed 1
116% 1.4 MB/s
244GB free, PID 0539
Operating at USB 3.0 Speed
SusWrite @10s intervals: 1.6 5 6 1.2 1.5 2.1 MB/s
17.6% Very poor
Read 75.6
Write 79.2
Mixed 49.3
SusWrite 2.9
65% 51.7 MB/s
4K Read 0.8
4K Write 1.9
4K Mixed 0.9
98% 1.2 MB/s
244GB free, PID 0539
Operating at USB 3.0 Speed
SusWrite @10s intervals: 4.8 6.7 4 0.8 1.3 2.5 MB/s
17.3% Very poor
Read 72.5
Write 75.3
Mixed 41.4
SusWrite 3.3
60% 48.1 MB/s
4K Read 0.8
4K Write 1.9
4K Mixed 0.9
98% 1.2 MB/s
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