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SanDiskSDCZ80-064G
$72
KingstonDTHX30/64GB
$104
▲ 609,046 ▼
 $72 

Release date: Q2 2012.

VS
▲ 521,210 ▼
 $104 

Release date: Q4 2011.

Effective Speed 
+54%
Real World Speed
Performance profile from 6,854 user samples
Benchmark your USB here
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
633 User Benchmarks
Best Bench: 83% 54GB free, PID 162b @USB 3.0
Worst Bench: 12% 4GB free, PID 162b @USB 2.1
Poor: 12% Great: 83%
SPEED RANK: 25th / 639
Effective Speed
Effective USB Speed 		74 % Much faster effective speed.
+54% 		48.2 %
Peak Score 
+200%
Read
Peak Sequential Read Speed 		197 MB/s 247 MB/s Faster peak read speed.
+25%
Write
Peak Sequential Write Speed 		188 MB/s Much faster peak write speed.
+72% 		109 MB/s
4K Read
Peak 4K Random Read Speed 		13 MB/s Hugely faster peak random read.
+81% 		7.2 MB/s
4K Write
Peak 4K Random Write Speed 		8.9 MB/s Hugely faster peak random write.
+674% 		1.15 MB/s
Value & Sentiment 
+56%
Value
Value For Money 		26.8 % Hugely better value.
+121% 		12.1 %
User Rating
UBM User Rating 		60 % More popular.
+15% 		52 %
Price
Price (score) 		$72 Much cheaper.
+31% 		$104
Nice To Haves 
+4%
Age
Newest 		149 Months +4% 156 Months
Specifications 
Capacity
Capacity 		64GB 64GB
Conclusion 
Average Bench 74%
Average Bench 48.2%

For real world usability this is currently the best 64GB flash drive (superseded by the Ventura Ultra - 2014).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

Because of its fantastic headline read/write speeds, there is often a lot of interest in this drive. It's not available in 16GB so I couldn't include it in the standardized tests. Quickly looking at the 64GB Kingston HyperX 3.0 (manuf.) claimed seq r/w speeds 225/135 @ £78 or $100. Compared to the November leader - Sandisk Extreme 64GB version (manuf.) claimed r/w 190/170 @ £45 or $79. The extreme is significantly better value, and has much much faster 4K write speeds. [Nov '12 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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 Frequently Asked Questions

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USB Flash Drives
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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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