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SanDiskSDCZ80-064G
CorsairCMFVYGT3A-64GB
▲ 818,939 ▼

Release date: Q2 2012.

VS
Copy
▲ 57557 ▼

Release date: Q3 2012.

Effective Speed 
+112%
Real World Speed
Performance profile from 4,338 user samples
Benchmark your USB here
4,165 User Benchmarks
Best Bench: 110% 53GB free, PID 5580 @USB 3.0
Worst Bench: 22% 32GB free, PID 5580 @USB 3.0
Poor: 22% Great: 110%
SPEED RANK: 8th / 639
173 User Benchmarks
Best Bench: 61% 6GB free, PID 1a09 @USB 3.0
Worst Bench: 10% 14GB free, PID 1a09 @USB 2.1
Poor: 10% Great: 61%
SPEED RANK: 65th / 639
Effective Speed
Effective USB Speed 		70.7 % Hugely faster effective speed.
+112% 		33.4 %
Peak Lab Bench 
+1,462%
Read
Peak Sequential Read Speed 		197 MB/s 220 MB/s Slightly faster peak read speed.
+12%
Write
Peak Sequential Write Speed 		188 MB/s Much faster peak write speed.
+79% 		105 MB/s
4K Read
Peak 4K Random Read Speed 		13 MB/s 20 MB/s Much faster peak random read.
+54%
4K Write
Peak 4K Random Write Speed 		8.9 MB/s Insanely faster peak random write.
+5,833% 		0.15 MB/s
Value & Sentiment 
+60%
Value
Value For Money 		57.1 % Hugely better value.
+130% 		24.8 %
User Rating
UBM User Rating 		81 % Much more popular.
+42% 		57 %
Price
Price (score) 		$43 Slightly cheaper.
+8% 		$47
Nice To Haves 
+1%
Age
Newest 		77 Months 76 Months +1%
Specifications 
Capacity
Capacity 		64GB 64GB
Conclusion 
Average Bench 70.7%
Average Bench 33.4%
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For real world usability this is currently the best 64GB flash drive (superseded by the Ventura Ultra - 2014).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]

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The 64 GB Flash Voyager GT has an impressive performance profile. You wouldn't know it without checking the serial numbers but Corsair have released several variants of the USB 3.0 Voyager GT. With each successive version slightly besting its predecessor, this is the best flash drive I have seen from Corsair to date, it even beats the GT Turbo which is more recent. The strongest area of relative performance for the GT is 4K read speed where it achieves 20 MB/s, unfortunately its 4K write speed is almost equally poor clocking in at just 0.15 MB/s. I don't generally like that sort of imbalance in a flash drives performance because it means that from time to time I will get stuck waiting an inordinate amount of time for a data transfer to complete. Taken as a whole the 64 GB GT is a competent performer that's let down by its relatively weak 4k write speed. [Sep '13 USBFlashPro]

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USB Flash Drive Rankings (Price vs Performance) November 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]

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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.
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 Frequently Asked Questions

Storage Devices FAQ
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USB Flash Drives
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 Best User Rated
The Best.
CPUGPUSSD
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AMD Ryzen 5 1600 $130Nvidia GTX 1060-6GB $220Samsung 850 Evo 500GB $100
Intel Core i5-8600K $237AMD RX 480 $280Samsung 850 Pro 256GB $163
HDDRAMUSB
Seagate Barracuda 1TB (2016) $40Corsair Vengeance LPX DDR4 3000 C15 2x8GB $130SanDisk Extreme 64GB $43
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $869SanDisk Extreme 32GB $48
WD Blue 1TB (2012) $40Corsair Vengeance LPX DDR4 3200 C16 2x8GB $130SanDisk Ultra Fit 32GB $12
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