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WDC (ExtHD)

WD40 EZRX-00SPEB0 4TB

▲ 500 ▼

Release date ≈ Q3 2014.

Average Bench: 34.2% (62nd of 639)

Based on 87 user benchmarks.  Device: VID 152d PID 0539 Model: WDC WD40 EZRX-00SPEB0
Poor: 16%Average: 34.2% Great: 50%

Poor average bench

The WDC WD40 EZRX-00SPEB0 4TB averaged 65.7% 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 2.12MB/s
Avg. Sequential Write Speed 92.4MB/s

Above average consistency

The range of scores (95th - 5th percentile) for the WDC WD40 EZRX-00SPEB0 4TB is 33.7%. This is a relatively narrow range which indicates that the WDC WD40 EZRX-00SPEB0 4TB performs reasonably consistently under varying real world conditions.

Weaknesses

Avg. 4K Random Read Speed 0.78MB/s
Avg. 4K Random Mixed IO Speed 0.58MB/s

Average Bench

(Based on 87 samples)
Rank 6234.2%
Min Avg Max
31.2 Read 93.6 122
25.6 Write 92.4 122
28 Mixed 67.6 102
0.13 SusWrite 37.8 108
95% 72.8 MB/s
Min Avg Max
0.49 4K Read 0.78 1
1.66 4K Write 2.12 2.5
0.2 4K Mixed 0.58 1
94.7% 1.16 MB/s
User Benchmarks BenchSequentialRandom 4kDeep queue 4k
The fastest USB (mainstream) averages a speed of 100%
1TB free, PID 0539
Operating at USB 3.0 Speed
SusWrite @10s intervals: 108 109 107 107 107 112 MB/s
45.5% Average
Read 101
Write 101
Mixed 53.7
SusWrite 108
122% 91 MB/s
4K Read 0.9
4K Write 2.3
4K Mixed 0.9
112% 1.37 MB/s
528GB free, PID 0539
Operating at USB 3.0 Speed
SusWrite @10s intervals: 55 55 56 57 62 60 MB/s
32.6% Below average
Read 90.1
Write 92.6
Mixed 55.6
SusWrite 57.7
98% 74 MB/s
4K Read 1
4K Write 2.2
4K Mixed 0.9
109% 1.37 MB/s
740GB free, PID 0539
Operating at USB 3.0 Speed
SusWrite @10s intervals: 17 18 18 16 18 19 MB/s
29.6% Poor
Read 121
Write 115
Mixed 67.1
SusWrite 17.5
100% 80.1 MB/s
4K Read 1
4K Write 2.6
4K Mixed 0.8
119% 1.47 MB/s
879GB free, PID 0539
Operating at USB 3.0 Speed
SusWrite @10s intervals: 5.7 3.1 4.1 5.6 9.9 2.3 MB/s
18.8% Very poor
Read 85.1
Write 73.2
Mixed 45.4
SusWrite 5.1
64% 52.2 MB/s
4K Read 0.6
4K Write 1.7
4K Mixed 0.7
84% 1 MB/s
1.5TB free, PID 0539
Operating at USB 2.1 Speed
SusWrite @10s intervals: 4.4 4.5 4.5 4.4 4.5 4.4 MB/s
13.9% Very poor
Read 52.9
Write 35.9
Mixed 30.2
SusWrite 4.4
37% 30.9 MB/s
4K Read 1.6
4K Write 1.6
4K Mixed 0.8
88% 1.33 MB/s
999GB free, PID 0539
Operating at USB 2.1 Speed
SusWrite @10s intervals: 0.1 0.1 0.1 0.1 0.1 MB/s
12.6% Very poor
Read 53.5
Write 33.7
Mixed 29.3
SusWrite 0.1
34% 29.1 MB/s
4K Read 2
4K Write 1.4
4K Mixed 1
89% 1.47 MB/s
87 MORE »
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