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SanDiskSDCZ80-064G
CorsairCMFVYGT3A-64GB
▲ 818,963 ▼

Release date: Q2 2012.

VS
Copy
▲ 57557 ▼

Release date: Q3 2012.

Effective Speed 
+113%
Real World Speed
Performance profile from 4,433 user samples
Benchmark your USB here
4,229 User Benchmarks
Best Bench: 111% 58GB free, PID 5580 @USB 3.0
Worst Bench: 25% 27GB free, PID 5580 @USB 3.0
Poor: 25% Great: 111%
SPEED RANK: 8th / 639
204 User Benchmarks
Best Bench: 61% 41GB free, PID 1a09 @USB 3.0
Worst Bench: 10% 51GB free, PID 1a09 @USB 2.1
Poor: 10% Great: 61%
SPEED RANK: 68th / 639
Effective Speed
Effective USB Speed 		71.2 % Hugely faster effective speed.
+113% 		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 
+16%
Value
Value For Money 		19.5 % 24.8 % Better value.
+27%
User Rating
UBM User Rating 		81 % Much more popular.
+42% 		57 %
Price
Price (score) 		$128 $47 Much cheaper.
+63%
Nice To Haves 
+1%
Age
Newest 		82 Months 81 Months +1%
Specifications 
Capacity
Capacity 		64GB 64GB
Conclusion 
Average Bench 71.2%
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For real world usability this is currently the best 64GB flash drive (superseded by the Ventura Ultra - 2014).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) April 2019 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

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The Best.
CPUGPUSSD
Intel Core i7-8700K $366Nvidia GTX 1070 $379Samsung 850 Evo 250GB $100
AMD Ryzen 5 2600 $159Nvidia GTX 1060-6GB $230Samsung 850 Evo 500GB $85
AMD Ryzen 5 1600 $115Nvidia GTX 1080-Ti $808Samsung 850 Pro 256GB $93
HDDRAMUSB
Seagate Barracuda 1TB (2016) $45Corsair Vengeance LPX DDR4 3000 C15 2x8GB $95SanDisk Extreme 64GB $128
Seagate Barracuda 3TB (2016) $75G.SKILL Trident Z DDR4 3200 C14 4x16GB $711SanDisk Extreme 32GB $48
WD Blue 1TB (2012) $40Corsair Vengeance LPX DDR4 3200 C16 2x8GB $100SanDisk Ultra Fit 32GB $12
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