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SanDiskSDCZ43-064G-G46
SanDiskSDCZ80-064G
$72
▲ 531,621 ▼

Release date: Q3 2014.

VS
▲ 609,046 ▼
 $72 

Release date: Q2 2012.

Effective Speed 
+180%
Real World Speed
Performance profile from 18,702 user samples
Benchmark your USB here
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
6,221 User Benchmarks
Best Bench: 111% 48GB free, PID 5580 @USB 3.0
Worst Bench: 22% 53GB free, PID 5580 @USB 3.0
Poor: 22% Great: 111%
SPEED RANK: 7th / 639
Effective Speed
Effective USB Speed 		26.4 % 74 % Hugely faster effective speed.
+180%
Peak Score 
+101%
Read
Peak Sequential Read Speed 		157 MB/s 197 MB/s Faster peak read speed.
+25%
Write
Peak Sequential Write Speed 		90.6 MB/s 188 MB/s Hugely faster peak write speed.
+108%
4K Read
Peak 4K Random Read Speed 		6.8 MB/s 13 MB/s Hugely faster peak random read.
+91%
4K Write
Peak 4K Random Write Speed 		3.2 MB/s 8.9 MB/s Hugely faster peak random write.
+178%
Value & Sentiment 
+23%
Value
Value For Money 		30.7 % Better value.
+14% 		26.8 %
User Rating
UBM User Rating 		53 % 60 % More popular.
+13%
Price
Price (score) 		$23 Much cheaper.
+69% 		$72
Nice To Haves 
+17%
Age
Newest 		123 Months More recent.
+17% 		149 Months
Specifications 
Capacity
Capacity 		64GB 64GB
Conclusion 
Average Bench 26.4%
Average Bench 74%

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

For real world usability this is currently the best 64GB flash drive (superseded by the Ventura Ultra - 2014). It has a very balanced performance profile with an exceptional 4K random write speed. The 16GB version of the Extreme is currently the value leader in the USB 3.0 flash drive shootout. At present there are no viable alternatives to the 64GB Extreme in fact the Corsair voyager GT turbo is the only drive on the horizon that may challenge the Sandisk any time soon. There are however several reports (Newegg, Amazon) of compatibility issues with this, the 64GB version (other versions are fine), so if you do go for the 64GB version, don't throw the receipt away in a hurry. [Feb '13 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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  • - Download and run UserBenchmark
  • - CPU tests include: integer, floating and string
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  • - Drive tests include: read, write, sustained write and mixed IO
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  • - Reports are generated and presented on userbenchmark.com
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  • - See speed test results from other users
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  • - Compare your in-game FPS to other users with your hardware

 Frequently Asked Questions

Storage Devices FAQ
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What is 3D XPoint and how fast is it?
What’s the difference between SATA, PCIe and NVMe?
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USB Flash Drives
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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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