COMPARE
USB
RANKINGS
TEST
YOUR USB
SanDiskSDCZ43-064G-G46
SanDiskSDCZ80-064G
$72
▲ 611,605 ▼

Release date: Q3 2014.

VS
Copy
▲ 828,943 ▼
 $72 

Release date: Q2 2012.

Effective Speed 
+171%
Real World Speed
Performance profile from 8,340 user samples
Benchmark your USB here
4,493 User Benchmarks
Best Bench: 39% 55GB free, PID 5583 @USB 3.0
Worst Bench: 12% 5GB free, PID 5583 @USB 2.1
Poor: 12% Great: 39%
SPEED RANK: 136th / 639
3,847 User Benchmarks
Best Bench: 111% 53GB free, PID 5580 @USB 3.0
Worst Bench: 23% 24GB free, PID 5580 @USB 2.1
Poor: 23% Great: 111%
SPEED RANK: 7th / 639
Effective Speed
Effective USB Speed 		26.1 % 70.7 % Hugely faster effective speed.
+171%
Peak Lab Bench 
+101%
Read
Peak Sequential Read Speed 		152 MB/s 197 MB/s Faster peak read speed.
+30%
Write
Peak Sequential Write Speed 		91.7 MB/s 188 MB/s Hugely faster peak write speed.
+105%
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 
+18%
Value
Value For Money 		40.4 % Better value.
+18% 		34.1 %
User Rating
UBM User Rating 		61 % 82 % Much more popular.
+34%
Price
Price (score) 		$23 Much cheaper.
+69% 		$72
Nice To Haves 
+33%
Age
Newest 		52 Months Much more recent.
+33% 		78 Months
Specifications 
Capacity
Capacity 		64GB 64GB
Conclusion 
Average Bench 26.1%
Average Bench 70.7%
ADVERTISEMENT

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For real world usability this is currently the best 64GB flash drive (superseded by the Ventura Ultra - 2014).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

Custom PC Builder (Start a new build) Build your perfect PC: compare component prices, popularity, speed and value for money.

CHOOSE A COMPONENT:

CPU GPU SSD HDD RAM MBD
USB Flash Drive Rankings (Price vs Performance) December 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]

ADVERTISEMENT

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

Gaming Desktop Workstation

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
Why is bigger better?
ALL FAQs »

 Best User Rated
The Best.
CPUGPUSSD
Intel Core i7-8700K $370Nvidia GTX 1070 $330Samsung 850 Evo 250GB $63
AMD Ryzen 5 1600 $150Nvidia GTX 1060-6GB $210Samsung 850 Evo 500GB $90
Intel Core i5-8600K $243Nvidia GTX 1080-Ti $770Samsung 850 Pro 256GB $163
HDDRAMUSB
Seagate Barracuda 1TB (2016) $44Corsair Vengeance LPX DDR4 3000 C15 2x8GB $125SanDisk Extreme 64GB $72
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $830SanDisk Extreme 32GB $48
WD Blue 1TB (2012) $44Corsair Vengeance LPX DDR4 3200 C16 2x8GB $130SanDisk Ultra Fit 32GB $12
Today's hottest
Amazon Ebay Newegg
deals
CPU GPU SSD HDD USB RAM MBD
Test your PC Build a PC
FPS Estimates
User Guide  •  About  •  FAQs  •  Email  •  Privacy  •  Developer Feedback