Average Bench: 16.9% (271st of 639)

Based on 374 user benchmarks.  Device: VID 059f PID 1018 Model: SAMSUNG HD103SI
Poor: 12%Average: 16.9% Great: 20%

Terrible average bench

The SAMSUNG HD103SI 1TB averaged 83.0% 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.


Avg. 4K Random Write Speed 1.49MB/s
Avg. 4K Random Mixed IO Speed 0.54MB/s

Excellent consistency

The range of scores (95th - 5th percentile) for the SAMSUNG HD103SI 1TB is just 8.33%. This is an extremely narrow range which indicates that the SAMSUNG HD103SI 1TB performs superbly consistently under varying real world conditions.


Avg. 4K Random Read Speed 0.55MB/s
Avg. Sequential Read Speed 33.9MB/s

Average Bench

(Based on 374 samples)
Min Avg Max
23.1 Read 33.9 39.9
18.3 Write 32.2 42.3
20.2 Mixed 31.2 39.4
15.8 SusWrite 34.4 42.4
44.9% 32.9 MB/s
Min Avg Max
0.32 4K Read 0.55 0.7
1 4K Write 1.49 1.76
0.25 4K Mixed 0.54 0.8
71.2% 0.86 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest USB (mainstream) averages a speed of 100%
917GB free, PID 1018
Operating at USB 2.0 Speed
SusWrite @10s intervals: 36 40 40 40 40 40 MB/s
Read 38.1
Write 39.8
Mixed 35.5
SusWrite 39.3
52% 38.2 MB/s
4K Read 0.6
4K Write 1.8
4K Mixed 0.7
87% 1.03 MB/s
258GB free, PID 1018
Operating at USB 2.0 Speed
SusWrite @10s intervals: 34 39 40 40 40 35 MB/s
Read 37.9
Write 38.7
Mixed 35.6
SusWrite 37.9
51% 37.5 MB/s
4K Read 0.7
4K Write 1.6
4K Mixed 0.7
81% 1 MB/s
396GB free, PID 1018
Operating at USB 2.0 Speed
SusWrite @10s intervals: 22 22 22 22 22 22 MB/s
Read 24
Write 21.4
Mixed 20.2
SusWrite 22.1
30% 21.9 MB/s
4K Read 0.2
4K Write 1
4K Mixed 0.4
48% 0.53 MB/s
374 MORE »
How Fast Is Your USB? (Bench your build) Size up your PC in less than a minute.

Welcome to our freeware PC speed test tool. UserBenchmark will test your PC and compare the results to other users with the same components. You can quickly size up your PC, identify hardware problems and explore the best upgrades.

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How it works

  • - Download and run UserBenchMark.
  • - CPU tests include: integer, floating and string.
  • - GPU tests include: six 3D game simulations.
  • - Drive tests include: read, write, sustained write and mixed IO.
  • - RAM tests include: single/multi core bandwidth and latency.
  • - SkillBench (space shooter) tests user input accuracy.
  • - Reports are generated and presented on userbenchmark.com.
  • - Identify the strongest components in your PC.
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  • - Compare your components to the current market leaders.
  • - Explore your best upgrade options with a virtual PC build.
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USB Flash Drive Rankings (Price vs Performance) September 2021 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]


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.


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.
Intel Core i5-11600K $270Nvidia RTX 3060-Ti $400Crucial MX500 250GB $45
Intel Core i5-11400F $260Nvidia RTX 3070 $500Samsung 860 Evo 250GB $52
Intel Core i7-11700K $390Nvidia GTX 1660S (Super) $240Samsung 850 Evo 120GB $183
Seagate Barracuda 1TB (2016) $40Corsair Vengeance LPX DDR4 3200 C16 2x8GB $78SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $35Corsair Vengeance LPX DDR4 3000 C15 2x8GB $77SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $649SanDisk Ultra Fit 32GB $16
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