TEST
YOUR USB

Seagate (ExtHD)

BUP Portable 4TB

▲ 500 ▼

Release date ≈ Q4 2019.

Average Bench: 41.8% (36th of 639)

Based on 21 user benchmarks.  Device: VID 0bc2 PID ac38 Model: Seagate BUP Portable
Poor: 18%Average: 41.8% Great: 56%

Below average average bench

The Seagate BUP Portable 4TB averaged 58.1% 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 4.1MB/s
Avg. Sustained Write Speed 91MB/s

Above average consistency

The range of scores (95th - 5th percentile) for the Seagate BUP Portable 4TB is 37.8%. 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 0.86MB/s
Avg. Sequential Read Speed 63.5MB/s
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Average Bench

(Based on 21 samples)
Rank 3641.8%
Min Avg Max
0.7 Read 63.5 105
0.8 Write 84.8 131
0.8 Mixed 57.6 80.5
0.9 SusWrite 91 132
104% 74.2 MB/s
Min Avg Max
0.2 4K Read 0.86 1.2
0.4 4K Write 4.1 4.9
0.3 4K Mixed 0.58 0.8
162% 1.84 MB/s
User Benchmarks BenchSequentialRandom 4kDeep queue 4k
The fastest USB (mainstream) averages a speed of 100%
340GB free, PID ac38
Operating at USB 3.2 Speed
SusWrite @10s intervals: 106 121 120 126 80 91 MB/s
50.3% Above average
Read 92.9
Write 120
Mixed 75.5
SusWrite 107
137% 99 MB/s
4K Read 0.9
4K Write 4.3
4K Mixed 0.6
170% 1.93 MB/s
2TB free, PID ac38
Operating at USB 3.2 Speed
SusWrite @10s intervals: 105 106 106 106 106 106 MB/s
50.1% Above average
Read 98.1
Write 100
Mixed 66.1
SusWrite 106
126% 92.6 MB/s
4K Read 0.9
4K Write 4.1
4K Mixed 0.6
163% 1.87 MB/s
2.5TB free, PID ac38
Operating at USB 3.2 Speed
SusWrite @10s intervals: 112 114 114 114 113 114 MB/s
42.7% Average
Read 33.8
Write 86
Mixed 53.3
SusWrite 114
107% 71.7 MB/s
4K Read 0.7
4K Write 4.2
4K Mixed 0.6
166% 1.83 MB/s
2TB free, PID ac38
Operating at USB 3.2 Speed
SusWrite @10s intervals: 77 106 106 106 106 107 MB/s
41.7% Average
Read 30.3
Write 69.5
Mixed 57.2
SusWrite 101
97% 64.6 MB/s
4K Read 0.8
4K Write 4.9
4K Mixed 0.6
190% 2.1 MB/s
134GB free, PID ac38
Operating at USB 2.1 Speed
SusWrite @10s intervals: 17 18 17 17 17 18 MB/s
18% Very poor
Read 23.3
Write 24.3
Mixed 24.3
SusWrite 17.2
30% 22.3 MB/s
4K Read 0.7
4K Write 3.5
4K Mixed 0.5
139% 1.57 MB/s
29GB free, PID ac38
Operating at USB 2.1 Speed
SusWrite @10s intervals: 0.9 1 1 1 1 0.9 MB/s
1.57% Terrible
Read 0.7
Write 0.8
Mixed 0.8
SusWrite 0.9
1% 0.8 MB/s
4K Read 0.2
4K Write 0.4
4K Mixed 0.3
24% 0.3 MB/s
21 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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 Best User Rated
The Best.
CPUGPUSSD
Intel Core i5-13600K $254Nvidia RTX 4060 $300Crucial MX500 250GB $40
Intel Core i5-12400F $133Nvidia RTX 4060-Ti $385Samsung 850 Evo 120GB $80
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