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SanDiskSDCZ43-064G-G46
SanDiskSDCZ80-064G
$72
▲ 531,616 ▼

Release date: Q3 2014.

VS
About
▲ 609,007 ▼
 $72 

Release date: Q2 2012.

Effective Speed 
+180%
Real World Speed
Performance profile from 14,834 user samples
Benchmark your USB here
9,953 User Benchmarks
Best Bench: 39% 44GB free, PID 5583 @USB 3.0
Worst Bench: 11% 48GB free, PID 5583 @USB 3.0
Poor: 11% Great: 39%
SPEED RANK: 136th / 639
4,881 User Benchmarks
Best Bench: 112% 14GB free, PID 5580 @USB 3.0
Worst Bench: 22% 28GB free, PID 5580 @USB 3.0
Poor: 22% Great: 112%
SPEED RANK: 7th / 639
Effective Speed
Effective USB Speed 		26.5 % 74 % Hugely faster effective speed.
+180%
Peak Score 
+102%
Read
Peak Sequential Read Speed 		157 MB/s 197 MB/s Faster peak read speed.
+25%
Write
Peak Sequential Write Speed 		88.5 MB/s 188 MB/s Hugely faster peak write speed.
+112%
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 
+78%
Value
Value For Money 		69.5 % Hugely better value.
+160% 		26.8 %
User Rating
UBM User Rating 		53 % 60 % More popular.
+13%
Price
Price (score) 		$10 Hugely cheaper.
+86% 		$72
Nice To Haves 
+25%
Age
Newest 		80 Months More recent.
+25% 		106 Months
Specifications 
Capacity
Capacity 		64GB 64GB
Conclusion 
Average Bench 26.5%
Average Bench 74%
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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]

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For real world usability this is currently the best 64GB flash drive (superseded by the Ventura Ultra - 2014).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) April 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.

UserBenchmark of the month

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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.
  • - 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.
  • - Share your opinion by voting.

 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
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ALL FAQs »

 Best User Rated
The Best.
CPUGPUSSD
Intel Core i5-11400F $173Nvidia RTX 3070 $500Crucial MX500 250GB $48
Intel Core i5-11600K $265Nvidia RTX 3060-Ti $400Samsung 850 Evo 120GB $78
Intel Core i7-10700K $316Nvidia GTX 1660S (Super) $240Samsung 860 Evo 250GB $50
HDDRAMUSB
Seagate Barracuda 1TB (2016) $40Corsair Vengeance LPX DDR4 3200 C16 2x8GB $79SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $34Corsair Vengeance LPX DDR4 3000 C15 2x8GB $73SanDisk Extreme 32GB $28
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $649SanDisk Ultra Fit 32GB $16
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