Real World Speed
Performance profile from 1,491 user samples
45 User Benchmarks
Best Bench: 20% 5GB free, PID 5000 @USB 3.0
Worst Bench: 9% 8GB free, PID 5000 @USB 2.1
Poor: 9% Great: 20%
SPEED RANK: 342nd / 639
1,446 User Benchmarks
Best Bench: 79% 15GB free, PID 5580 @USB 3.0
Worst Bench: 30% 15GB free, PID 5580 @USB 2.1
Poor: 30% Great: 79%
SPEED RANK: 13th / 639
Effective Speed
Effective USB Speed
18 % 76.6 % Hugely faster effective speed.
+326%
Read
Peak Sequential Read Speed
63 MB/s 196 MB/s Hugely faster peak read speed.
+211%
Write
Peak Sequential Write Speed
25 MB/s 62 MB/s Hugely faster peak write speed.
+148%
4K Read
Peak 4K Random Read Speed
14.2 MB/s 15.3 MB/s Slightly faster peak random read.
+8%
4K Write
Peak 4K Random Write Speed
0.02 MB/s 10.1 MB/s Insanely faster peak random write.
+50,400%
Value
Value For Money
6.31 % 33.8 % Hugely better value.
+436%
User Rating
UBM User Rating
54 % 67 % More popular.
+24%
Price
Price (score)
$25 $20 Cheaper.
+21%
Age
Newest
82 Months 71 Months Slightly more recent.
+13%
Capacity
Capacity
16GB 16GB
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The Supersonic Xpress has a great physical form, the innovative retractable design features a spring loaded back which snaps into place very satisfyingly, it's tempting to pop it in and out for no particular reason. In terms of performance the Xpress is below average across the board with the exception of an outstandingly high 4K read score of 14.2 MB/s. From a value perspective this drive is near the bottom of the pack, it has below average performance and is currently retailing at an above average price. [Jun '12 USBFlashPro]

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The benchmark scores for the SanDisk Extreme were stunning. Until now every flash drive we have tested has shown a serious weakness in the area of 4K random writes. The SanDisk Extreme achieved a 4K random write speed of 2.1 MB/s which was over three times faster than the best of the rest, unfortunately we were unable to get consistent measurements but 2.1 MB/s was towards at the lower end of the range (10.8 MB/s - 1.71 MB/s) we observed. We suspect the inconsistency relates to the way the controller batches page cleanup. The other benchmark observations were all consistent and to date this drive has the highest sequential read we have seen on a 16GB flash drive. The SanDisk Extreme has not been released in the UK. Our test unit had to be shipped from Hong Kong where we were able to purchase it at at an extremely reasonable price. We will update the price if/when the drive becomes officially available in the UK ... [Jul '12 USBFlashPro]

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USB Flash Drive Rankings (Price vs Performance) May 2018 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.
  • Fastest real world speed - Real World Speed measures performance for typical flash usage patterns.
  • Best value for money - Value for money is based on real world performance, price and capacity.
  • Raw speed comparison - Raw speed readings.
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.

UserBenchmark of the month

How it works

  • - Download and run UserBenchMark (UBM).
  • - CPU tests include: integer, floating and string.
  • - GPU tests include: six 3D game simulations.
  • - Drive tests include: read, write and mixed IO.
  • - Checks include: 4k Align, NCQ, TRIM, SATA, USB & S.M.A.R.T.
  • - RAM tests include: single/multi core bandwidth and latency.
  • - Reports are generated and presented on userbenchmark.com.
  • - Identify the strongest components in your PC.
  • - See speed test results from other users.
  • - Compare your components to the highest voted in class.
  • - Find the best upgrades.
  • - Share your opinion by voting.

 Frequently Asked Questions

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The Best.
CPUGPUSSD
Intel Core i7-8700K $320Nvidia GTX 1070 $447Samsung 850 Evo 250GB $95
AMD Ryzen 5 1600 $167Nvidia GTX 1060-6GB $300Samsung 850 Evo 500GB $139
Intel Core i7-7700K $285AMD RX 480 $300Samsung 850 Pro 256GB $163
HDDRAMUSB
Seagate Barracuda 1TB (2016) $44Corsair Vengeance LPX DDR4 3000 C15 2x8GB $180SanDisk Extreme 64GB $41
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $961SanDisk Extreme 32GB $30
Seagate Barracuda 2TB (2016) $60HyperX Fury DDR4 2133 C14 2x8GB $226SanDisk Extreme 16GB $20
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