TEST
YOUR USB

WDC (ExtHD)

WD40 EFRX-68N32N0 4TB

▲ 500 ▼

Release date ≈ Q3 2017.

Average Bench: 41.7% (37th of 639)

Based on 14 user benchmarks.  Device: VID 152d PID 0539 Model: WDC WD40 EFRX-68N32N0
Poor: 14%Average: 41.7% Great: 58%

Below average average bench

The WDC WD40 EFRX-68N32N0 4TB averaged 58.3% 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 2.22MB/s
Avg. Sequential Write Speed 116MB/s

Average consistency

The range of scores (95th - 5th percentile) for the WDC WD40 EFRX-68N32N0 4TB is 44.1%. This is a relatively wide range which indicates that the WDC WD40 EFRX-68N32N0 4TB performs inconsistently under varying real world conditions.

Weaknesses

Avg. 4K Random Read Speed 0.91MB/s
Avg. Sequential Read Speed 120MB/s
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Average Bench

(Based on 14 samples)
Rank 3741.7%
Min Avg Max
36.8 Read 120 170
36.8 Write 116 170
29 Mixed 76.6 98.7
0.2 SusWrite 70.4 168
125% 95.6 MB/s
Min Avg Max
0.5 4K Read 0.91 1.1
0.9 4K Write 2.22 2.8
0.24 4K Mixed 0.84 1.1
107% 1.32 MB/s
User Benchmarks BenchSequentialRandom 4kDeep queue 4k
The fastest USB (mainstream) averages a speed of 100%
3.5TB free, PID 0539
Operating at USB 3.0 Speed
SusWrite @10s intervals: 161 166 168 170 174 172 MB/s
68.7% Good
Read 162
Write 169
Mixed 92.5
SusWrite 168
200% 148 MB/s
4K Read 1
4K Write 2.7
4K Mixed 1.1
133% 1.6 MB/s
1.5TB free, PID 0539
Operating at USB 3.0 Speed
SusWrite @10s intervals: 129 129 138 131 128 134 MB/s
51.2% Above average
Read 130
Write 75.7
Mixed 92.5
SusWrite 131
142% 107 MB/s
4K Read 1
4K Write 1.1
4K Mixed 0.8
68% 0.97 MB/s
639GB free, PID 0539
Operating at USB 3.0 Speed
SusWrite @10s intervals: 34 35 35 35 35 36 MB/s
32.2% Below average
Read 113
Write 115
Mixed 89.6
SusWrite 35.1
115% 88.1 MB/s
4K Read 1
4K Write 2.6
4K Mixed 0.9
123% 1.5 MB/s
45GB free, PID 0539
Operating at USB 3.0 Speed
SusWrite @10s intervals: 11 70 0.3 0.1 0.2 2.7 MB/s
27.7% Poor
Read 115
Write 117
Mixed 85.8
SusWrite 13.9
106% 83 MB/s
4K Read 1
4K Write 2.5
4K Mixed 1
123% 1.5 MB/s
45GB free, PID 0539
Operating at USB 3.0 Speed
SusWrite @10s intervals: 28 0.3 MB/s
26.8% Poor
Read 112
Write 117
Mixed 86.8
SusWrite 13.4
106% 82.3 MB/s
4K Read 1
4K Write 2.4
4K Mixed 1
119% 1.47 MB/s
448GB free, PID 0539
Operating at USB 2.1 Speed
SusWrite @10s intervals: 0.6 0.1 0 0.1 0.1 0.2 MB/s
14.1% Very poor
Read 40.5
Write 40.7
Mixed 33
SusWrite 0.2
36% 28.6 MB/s
4K Read 1
4K Write 2.6
4K Mixed 1
126% 1.53 MB/s
14 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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