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SanDiskSDCZ80-032G
SanDiskSDCZ43-064G-G46
▲ 586,110 ▼

Release date: Q2 2012.

VS
▲ 531,621 ▼

Release date: Q3 2014.

Effective Speed 
+144%
Real World Speed
Performance profile from 16,694 user samples
Benchmark your USB here
4,213 User Benchmarks
Best Bench: 93% 30GB free, PID 5580 @USB 3.0
Worst Bench: 25% 26GB free, PID 5580 @USB 2.1
Poor: 25% Great: 93%
SPEED RANK: 9th / 639
12,481 User Benchmarks
Best Bench: 39% 58GB free, PID 5583 @USB 3.0
Worst Bench: 12% 28GB free, PID 5583 @USB 2.1
Poor: 12% Great: 39%
SPEED RANK: 138th / 639
Effective Speed
Effective USB Speed 		64.5 % Hugely faster effective speed.
+144% 		26.4 %
Peak Score 
+87%
Read
Peak Sequential Read Speed 		202 MB/s Faster peak read speed.
+29% 		157 MB/s
Write
Peak Sequential Write Speed 		117 MB/s Faster peak write speed.
+29% 		90.6 MB/s
4K Read
Peak 4K Random Read Speed 		11.8 MB/s Much faster peak random read.
+74% 		6.8 MB/s
4K Write
Peak 4K Random Write Speed 		10.1 MB/s Hugely faster peak random write.
+216% 		3.2 MB/s
Value & Sentiment 
+3%
Value
Value For Money 		30.5 % 30.7 % +1%
User Rating
UBM User Rating 		58 % Slightly more popular.
+9% 		53 %
Price
Price (score) 		$28 $23 Cheaper.
+19%
Nice To Haves 
+17%
Age
Newest 		149 Months 123 Months More recent.
+17%
Specifications 
Capacity
Capacity 		32GB 64GB
Conclusion 
Average Bench 64.5%
Average Bench 26.4%

The 16GB Sandisk Extreme has led my USB 3.0 Flash drive group test since it was released back in Jun '12. Often with flash based devices, write speed scales linearly with capacity and the Extreme is no exception. The sequential write speeds for the different capacities are: 16GB = 62 MB/s, 32GB = 117 MB/s and 64GB = 188 MB/s. In the 64GB category there are several alternatives to the Extreme including the new Corsair Flash Voyager GT Turbo, Kingston HyperX and Patriot Supersonic Magnum. In the 16 GB category there are also a few viable alternatives but in the 32GB category I have yet to come across a drive that even comes close to the Sandisk Extreme from either a value for money OR performance perspective.  [Mar '13 USBFlashPro]

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The 64GB SanDisk Ultra Fit is the largest capacity available in the Ultra Fit range. Both the 16GB and 32GB siblings fared well in terms of peak performance but with the majority of flash based products larger capacities are faster. Unfortunately for the Ultra Fit this proved not to be the case. Comparing the performance leading Mushkin Ventura and 64GB Ultra Fit shows that the Ventura is around 600% faster but just 60% more expensive. Although the Ultra Fit is a contender in the 32GB and 16GB capacities it doesn't fare well against the 64GB competition. If you are looking for a tiny form factor the 64GB SanDisk Ultra Fit is superb but otherwise there are better alternatives available with better peak and significantly better sustained transfer speeds. [Oct '14 USBFlashPro]

MORE DETAILS

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USB Flash Drive Rankings (Price vs Performance) November 2024 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.
How Fast Is Your USB? (Bench your build) Size up your PC in less than a minute

Welcome to our 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 value for money 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
  • - Compare your in-game FPS to other users with your hardware

 Frequently Asked Questions

Storage Devices FAQ
What is sustained sequential write speed?
What’s the difference between SLC, MLC and TLC?
What is 3D XPoint and how fast is it?
What’s the difference between SATA, PCIe and NVMe?
What’s the difference between NAND and V-NAND?
What is sequential write speed?
What is sequential read speed?
What is incompressible data?
USB Flash Drives
How do you install an OS from a USB flash drive?
What is the Flash Drive value for money rating?
What is effective USB Flash Drive speed?
Why should USB 2.0 Flash Drives be avoided?
File system considerations?
Do dimensions matter?
What are the main factors to look out for?
16GB USB Flash Drives
Why is bigger better?
ALL FAQs »

 Best User Rated
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Marketers operate thousands of reddit accounts. Our benchmarks expose their spiel so they attack our reputation.
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Brands make boatloads on flagships like the 4090 and 14900KS. We help users get similar real-world performance for less money.
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We don't pay youtubers, so they don't praise us. Moreover, our data obstructs youtubers who promote overpriced or inferior products.
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The 200+ trustpilot reviews are mostly written by virgin marketing accounts. Real users don't give a monkey's about big brands.
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Instead of pursuing brands for sponsorship, we've spent 13 years publishing real-world data for users.
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