KingstonDT100G3/16GB
SanDiskSDCZ48-016G
Real World Speed
Performance profile from 68,505 user samples
51,553 User Benchmarks
Best Bench: 24% 11GB free, PID 1666 @USB 3.0
Worst Bench: 4% 10GB free, PID 1666 @USB 3.1
Poor: 4% Great: 24%
SPEED RANK: 382nd / 639
16,952 User Benchmarks
Best Bench: 35% 14GB free, PID 5581 @USB 3.0
Worst Bench: 10% 14GB free, PID 5581 @USB 2.1
Poor: 10% Great: 35%
SPEED RANK: 188th / 639
Effective Speed
Effective USB Speed
12.7 % 22.8 % Much faster effective speed.
+79%
Read
Peak Sequential Read Speed
62.6 MB/s 75.5 MB/s Faster peak read speed.
+21%
Write
Peak Sequential Write Speed
9.9 MB/s Faster peak write speed.
+12%
8.85 MB/s
4K Read
Peak 4K Random Read Speed
7.1 MB/s 8.35 MB/s Faster peak random read.
+18%
4K Write
Peak 4K Random Write Speed
0.05 MB/s 0.08 MB/s Much faster peak random write.
+74%
Value
Value For Money
20.9 % 22 % Slightly better value.
+5%
User Rating
UBM User Rating
50 % 52 % +4%
Price
Price (score)
$4 Much cheaper.
+41%
$7
Age
Newest
100 Months +2% 102 Months
Capacity
Capacity
16GB 16GB
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This is one of the Kingston's newest flash drives and yet another drive from Kingston with no claimed read or write speeds on the official documentation, not an encouraging sign (Kingston have since quoted Read/Write speeds of 40/10 MB/s). With a sequential write speed of 9.9 MB/s and a random write of 0.046 MB/s This drive is actually slower at writing than a lot of USB 2.0 drives, it's seriously dog slow. I really don't understand why Kingston have released a flash drive with specs like this but then I guess they didn't write the speed in the specs for a reason! There is no reason to buy this drive, as there are far better USB 3.0 flash drives out there for approximately the same money. Kingston's own DTR30 is a far better drive for an extra five pounds. If you really don't want to spend more than £10 then the Verbatim Store n Go V3 is better for the money. [Jun '13 USBFlashPro]

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Sandisk had phenomenal success with the Sandisk Extreme which I reviewed nearly two years ago. The Extreme is still one of the best flash drives available. I had high hopes for the Ultra despite its marginally more budget orientation. Unfortunately the 16GB Ultra turned out to be a disappointment. With sequential read/write speeds of just 75/9 Mbps the Ultra lies in the bottom 25% of 16GB USB 3.0 flash drives. Small file (4K) read/write speeds clocked in at 8.35/0.08 MBps which is also in the bottom 25%. On the bright side the Ultra USB 3.0 isn't overpriced so it does represents reasonable value for money but I would happily spend a little more and get the record breaking 16GB Sandisk Extreme [Feb '14 USBFlashPro]

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USB Flash Drive Rankings (Price vs Performance) August 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]

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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.
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.
  • - See speed test results from other users.
  • - Compare your components to the current market leaders.
  • - Explore your best upgrade options with a virtual PC build.
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