TEST
YOUR USB

Seagate (ExtHD)

BUP Portable 4TB

▲ 500 ▼

Release date ≈ Q4 2019.

Average Bench: 42.4% (36th of 639)

Based on 53 user benchmarks.  Device: VID 0bc2 PID ac35 Model: Seagate BUP Portable
Poor: 17%Average: 42.4% Great: 56%

Below average average bench

The Seagate BUP Portable 4TB averaged 57.5% 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 4.12MB/s
Avg. Sustained Write Speed 90.3MB/s

Above average consistency

The range of scores (95th - 5th percentile) for the Seagate BUP Portable 4TB is 39%. This is a relatively wide range which indicates that the Seagate BUP Portable 4TB performs inconsistently under varying real world conditions.

Weaknesses

Avg. 4K Random Read Speed 0.87MB/s
Avg. Sequential Read Speed 68MB/s
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Average Bench

(Based on 53 samples)
Rank 3642.4%
Min Avg Max
14.1 Read 68 110
13.2 Write 87.7 130
14.6 Mixed 59.6 82.7
11.4 SusWrite 90.3 134
107% 76.4 MB/s
Min Avg Max
0.4 4K Read 0.87 1.33
2.9 4K Write 4.12 5.16
0.5 4K Mixed 0.63 0.83
165% 1.88 MB/s
User Benchmarks BenchSequentialRandom 4kDeep queue 4k
The fastest USB (mainstream) averages a speed of 100%
3TB free, PID ac35
Operating at USB 3.2 Speed
SusWrite @10s intervals: 113 114 118 118 121 120 MB/s
53% Above average
Read 78.2
Write 112
Mixed 77.5
SusWrite 117
136% 96.3 MB/s
4K Read 0.5
4K Write 5.2
4K Mixed 0.7
202% 2.13 MB/s
3TB free, PID ac35
Operating at USB 3.2 Speed
SusWrite @10s intervals: 103 125 128 127 129 124 MB/s
52.9% Above average
Read 87.1
Write 110
Mixed 73.9
SusWrite 123
138% 98.5 MB/s
4K Read 1.2
4K Write 4.3
4K Mixed 0.7
174% 2.07 MB/s
1TB free, PID ac35
Operating at USB 3.2 Speed
SusWrite @10s intervals: 112 119 119 122 120 119 MB/s
50.8% Above average
Read 75
Write 105
Mixed 76.5
SusWrite 118
133% 93.7 MB/s
4K Read 1
4K Write 4.5
4K Mixed 0.6
177% 2.03 MB/s
3.5TB free, PID ac35
Operating at USB 3.2 Speed
SusWrite @10s intervals: 128 136 142 145 142 135 MB/s
50% Average
Read 48.8
Write 112
Mixed 85
SusWrite 138
143% 96 MB/s
4K Read 0.9
4K Write 4.1
4K Mixed 0.8
170% 1.93 MB/s
1TB free, PID ac35
Operating at USB 3.2 Speed
SusWrite @10s intervals: 90 90 93 85 89 88 MB/s
31.6% Below average
Read 49.9
Write 92.5
Mixed 24.1
SusWrite 89.2
91% 63.9 MB/s
4K Read 0
4K Write 1.6
4K Mixed 0.1
58% 0.57 MB/s
53 MORE »
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  • Fastest real world speed - Real World Speed measures performance for typical consumers.

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