Average Bench: 70.7% (7th of 639)

Based on 4,165 user benchmarks.  Device: VID 0781 PID 5580 Model: SanDisk Extreme

For real world usability this is currently the best 64GB flash drive (superseded by the Ventura Ultra - 2014).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

Poor: 22%Average: 70.7% Great: 110%

Good average bench

The SanDisk Extreme USB 3.0 64GB averaged 29.2% lower than the peak scores attained by the group leaders. This isn't a great result which indicates that there are much faster alternatives on the comparison list.


Avg. 4K-64Thread Write Speed 10.5MB/s
Avg. 4K Random Write Speed 8.33MB/s

Terrible consistency

The range of scores (95th - 5th percentile) for the SanDisk Extreme USB 3.0 64GB is 88.1%. This is a particularly wide range which indicates that the SanDisk Extreme USB 3.0 64GB performs inconsistently under varying real world conditions.


Avg. Sequential Mixed IO Speed 54MB/s
Avg. 4K Random Read Speed 8.82MB/s

Average Bench

(Based on 4,165 samples)
Min Avg Max
26.7 Read 151 250
8.99 Write 83.5 183
4.39 Mixed 54 158
13.2 SusWrite 100 193
121% 97.2 MB/s
Min Avg Max
3.48 4K Read 8.82 12.3
2.18 4K Write 8.33 11
2.03 4K Mixed 5.81 8.4
513% 7.65 MB/s
Min Avg Max
8.39 DQ Read 10.8 13
6.9 DQ Write 10.5 12.5
3.57 DQ Mixed 7.54 10.4
653% 9.61 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest USB (mainstream) averages a speed of 100%
33GB free, PID 5580
Operating at USB 3.0 Speed
SusWrite @10s intervals: 122 179 175 180 166 165 MB/s
Read 250
Write 158
Mixed 46.5
SusWrite 164
190% 155 MB/s
4K Read 11.8
4K Write 11
4K Mixed 8.3
700% 10.4 MB/s
DQ Read 12.2
DQ Write 12.6
DQ Mixed 10.4
828% 11.7 MB/s
12GB free, PID 5580
Operating at USB 3.0 Speed
SusWrite @10s intervals: 19 114 31 97 107 59 MB/s
Read 212
Write 62.3
Mixed 16.5
SusWrite 71.1
95% 90.4 MB/s
4K Read 2.2
4K Write 8.8
4K Mixed 5.5
495% 5.5 MB/s
DQ Read 11.3
DQ Write 5.7
DQ Mixed 5.6
426% 7.53 MB/s
8GB free, PID 5580
Operating at USB 3.0 Speed
SusWrite @10s intervals: 15 80 148 92 157 184 MB/s
Read 192
Write 68.2
Mixed 38.2
SusWrite 113
120% 103 MB/s
4K Read 10.9
4K Write 6.1
4K Mixed 8.3
530% 8.43 MB/s
34GB free, PID 5580
Operating at USB 2.1 Speed
SusWrite @10s intervals: 25 23 26 27 27 26 MB/s
Read 29
Write 26.5
Mixed 19.3
SusWrite 25.7
34% 25.1 MB/s
4K Read 3.6
4K Write 3.6
4K Mixed 3.2
245% 3.47 MB/s
4,165 MORE »


Approx. $72 @ launch in Jun '12
AmazonUS $435 days
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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]


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.


Packs unparalleled transfer speeds...

  • Available capacities: 16GB, 32GB and 64GB
  • Performance/speed: Up to 190 MB/s** ; write speed lower and varies by capacity.
  • Dimensions: 2.79" x .84" x .45" (70.87 mm x 21.34 mm x 11.43 mm)
Added 5 years ago.

Terrible (edit your comment) Add link

10 days ago.


I have been using this for about 4 months now and nothing else even close and I've tried others!—Sep '14


10 months ago.

Flimsy manufacture - failed after only moderate use.


Failed after six months with a problem that seems quite common - could read from drive, but writing would instantly cause it to freeze.—Sep '14


Cant be happier, actual speed i get is even better than advertised, well happy. Below is comparison between usb 2&3. —Jan '15


2 months ago.

It is the fastest usb disk I have ever used. Performance is really on fire.


12 months ago.

Fastest USB I've Have. Recomended Item


13 days ago.

good speed.. 240mb read 190mb write


10 months ago.

only thing is it can not have any weight on the lanyard wile in use or the usb will ultimately fail I miss my cat


8 months ago.


Best stick I had until now; also works well together with usb 2 ports on older computers.—Sep '14


7 months ago.

Great USB 3.0 Drive! Recommended, i just bought this drive for 20€!


16 months ago.

I've tested it in a benchmark and got about 150MB/s for the sequential write speed but when I try to move a 40GB .vdi file (virtual machine), it's only 40MB/s... Going back to use my external hard drive.


2 years ago.

I liked a usb drives comparing


2 years ago.

it's really fast with 3.0 port


5 years ago.

Image  blog-imgs-54.fc2.com/...
CrystalDiskMark Benchmark Speed Test

CrystalDiskMark Benchmark Speed Test


2 months ago.

I love it!


2 years ago.

The feel of 'opening' it is the greatest ever.


1 month ago.

Quality issues


3 years ago.

Excellent drive, never have something like this. All recommendation for buying this USB 3.0 memory stick !

639 Drives (Compared) Thousands of user benchmarks compiled into one comparison list.

See how consistently different USBs perform with varying real world conditions. The charts also illustrate overall performance, popularity and rank.

 Frequently Asked Questions

 Best User Rated

The Best.
Intel Core i7-8700K $359Nvidia GTX 1070 $340Samsung 850 Evo 250GB $80
AMD Ryzen 5 1600 $130Nvidia GTX 1060-6GB $234Samsung 850 Evo 500GB $100
Intel Core i5-8600K $237AMD RX 480 $280Samsung 850 Pro 256GB $163
Seagate Barracuda 1TB (2016) $45Corsair 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) $45Corsair Vengeance LPX DDR4 3200 C16 2x8GB $130SanDisk Ultra Fit 32GB $12
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