Average Bench: 41% (40th of 639)

Based on 134 user benchmarks.  Device: VID 0bc2 PID ab28 Model: Seagate BUP SL
Poor: 18%Average: 41% Great: 59%

Below average average bench

The Seagate BUP SL 4TB averaged 59.0% 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 4.73MB/s
Avg. Sustained Write Speed 75.9MB/s

Average consistency

The range of scores (95th - 5th percentile) for the Seagate BUP SL 4TB is 41.6%. This is a relatively wide range which indicates that the Seagate BUP SL 4TB performs inconsistently under varying real world conditions.

Weaknesses

Avg. 4K Random Read Speed 1MB/s
Avg. Sequential Read Speed 68.2MB/s
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Average Bench

(Based on 134 samples)
Min Avg Max
17.6 Read 68.2 119
21.9 Write 74 118
4.55 Mixed 43.1 75
16.9 SusWrite 75.9 127
88.9% 65.3 MB/s
Min Avg Max
0.35 4K Read 1 1.87
2.05 4K Write 4.73 6.46
0.24 4K Mixed 0.49 0.7
181% 2.07 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest USB (mainstream) averages a speed of 100%
2TB free, PID ab28
Operating at USB 3.0 Speed
SusWrite @10s intervals: 117 122 124 120 121 123 MB/s
Read 106
Write 99.8
Mixed 74.3
SusWrite 121
136% 100 MB/s
4K Read 1.1
4K Write 4.5
4K Mixed 0.6
178% 2.07 MB/s
3.5TB free, PID ab28
Operating at USB 3.0 Speed
SusWrite @10s intervals: 125 125 126 126 126 127 MB/s
Read 93.7
Write 121
Mixed 72.3
SusWrite 126
144% 103 MB/s
4K Read 1.1
4K Write 4.6
4K Mixed 0.7
184% 2.13 MB/s
1TB free, PID ab28
Operating at USB 3.0 Speed
SusWrite @10s intervals: 112 117 117 118 119 116 MB/s
Read 78.5
Write 100
Mixed 53.8
SusWrite 116
122% 87.2 MB/s
4K Read 1
4K Write 4.6
4K Mixed 0.6
181% 2.07 MB/s
3TB free, PID ab28
SusWrite @10s intervals: 119 117 116 117 117 117 MB/s
Read 85.2
Write 111
Mixed 56
SusWrite 117
128% 92.4 MB/s
4K Read 1.1
4K Write 4.1
4K Mixed 0.6
164% 1.93 MB/s
2.5TB free, PID ab28
Operating at USB 3.0 Speed
SusWrite @10s intervals: 88 110 108 107 111 113 MB/s
Read 70.4
Write 99.1
Mixed 70.4
SusWrite 106
123% 86.6 MB/s
4K Read 0.9
4K Write 4.6
4K Mixed 0.6
180% 2.03 MB/s
867GB free, PID ab28
Operating at USB 3.0 Speed
SusWrite @10s intervals: 93 92 96 96 96 96 MB/s
Read 69.5
Write 92.5
Mixed 68
SusWrite 94.6
114% 81.2 MB/s
4K Read 0.9
4K Write 4.5
4K Mixed 0.6
177% 2 MB/s
134 MORE »
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USB Flash Drive Rankings (Price vs Performance) January 2020 USB Rankings.

We highlight the best USB flash drive in terms of balanced performance and value for money using current prices, sequential read, sequential write , 4k read and 4k write speed. The speeds are combined to form a single effective speed which measures performance for tasks such as copying photos, music and videos. Effective speed is adjusted by current price and capacity to yield value for money. Finally thousands of individual user ratings are used to validate our benchmark figures. [USBFlashPro]

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Group Test Results

  • Best user rated - User sentiment trumps benchmarks for this comparison.
  • Best value for money - Value for money is based on real world performance.
  • Fastest real world speed - Real World Speed measures performance for typical consumers.

 Comments

639 Drives (Compared) Thousands of user benchmarks compiled into one comparison list.

See how consistently different USBs perform with varying real world conditions. The charts also illustrate overall performance, popularity and rank.

 Frequently Asked Questions

 Best User Rated

The Best.
CPUGPUSSD
Intel Core i5-9600K $218Nvidia GTX 1660S (Super) $240Crucial MX500 250GB $42
Intel Core i5-9400F $155Nvidia GTX 1650S (Super) $160Samsung 850 Evo 120GB $78
Intel Core i7-9700K $356Nvidia RTX 2060 $349Samsung 850 Pro 512GB $249
HDDRAMUSB
Seagate Barracuda 1TB (2016) $37Corsair Vengeance LPX DDR4 3200 C16 2x8GB $73SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $40Corsair Vengeance LPX DDR4 3000 C15 2x8GB $63SanDisk Extreme 32GB $46
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $653SanDisk Ultra Fit 32GB $16
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