Average Bench: 71.1% (8th of 639)

Based on 3,978 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For real world usability this is currently the best 64GB flash drive (superseded by the Ventura Ultra - 2014).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: 23%Average: 71.1% Great: 111%

Good average bench

The SanDisk Extreme USB 3.0 64GB averaged 28.9% 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 10.9MB/s
Avg. 4K-64Thread Mixed IO Speed 8.88MB/s

Terrible consistency

The range of scores (95th - 5th percentile) for the SanDisk Extreme USB 3.0 64GB is 87.7%. 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 42.2MB/s
Avg. Sequential Read Speed 148MB/s

Average Bench

(Based on 3,978 samples)
Min Avg Max
25.6 Read 148 249
12.6 Write 83.7 186
2.5 Mixed 42.2 119
12.9 SusWrite 102 193
116% 94.1 MB/s
Min Avg Max
3.2 4K Read 8.8 12.3
1.06 4K Write 8.21 11
3.26 4K Mixed 6.65 8.4
538% 7.89 MB/s
Min Avg Max
8.2 DQ Read 10.9 13.1
7.7 DQ Write 10.9 12.5
6.99 DQ Mixed 8.88 10.4
713% 10.2 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest USB (mainstream) averages a speed of 100%
55GB free, PID 5580
Operating at USB 3.0 Speed
SusWrite @10s intervals: 156 170 174 191 191 187 MB/s
Read 232
Write 169
Mixed 49.5
SusWrite 178
198% 157 MB/s
4K Read 10.5
4K Write 10.5
4K Mixed 7.4
648% 9.47 MB/s
DQ Read 11.7
DQ Write 11.6
DQ Mixed 9.2
751% 10.8 MB/s
22GB free, PID 5580
Operating at USB 3.0 Speed
SusWrite @10s intervals: 39 136 168 143 150 185 MB/s
Read 198
Write 73.3
Mixed 30
SusWrite 137
129% 110 MB/s
4K Read 8.1
4K Write 9.9
4K Mixed 7.1
608% 8.37 MB/s
DQ Read 10.9
DQ Write 6.7
DQ Mixed 9.3
585% 8.97 MB/s
53GB free, PID 5580
Operating at USB 3.0 Speed
SusWrite @10s intervals: 129 164 164 152 144 150 MB/s
Read 180
Write 161
Mixed 23.5
SusWrite 150
164% 129 MB/s
4K Read 11.1
4K Write 3.9
4K Mixed 8.3
456% 7.77 MB/s
16GB free, PID 5580
Operating at USB 2.1 Speed
SusWrite @10s intervals: 39 38 38 38 39 38 MB/s
Read 37.2
Write 37.2
Mixed 24
SusWrite 38.1
46% 34.1 MB/s
4K Read 9.5
4K Write 7.8
4K Mixed 7.1
542% 8.13 MB/s
3,978 MORE »


Approx. $72 @ launch in Jun '12
AmazonUS $4318 days
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USB Flash Drive Rankings (Price vs Performance) January 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]


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.

Excellent (edit your comment) Add link

1 month ago.


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


1 month ago.



12 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


4 months ago.

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


15 months ago.

Fastest USB I've Have. Recomended Item


2 months ago.

good speed.. 240mb read 190mb write


12 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


10 months ago.


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


9 months ago.

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


19 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


4 months ago.

I love it!


2 years ago.

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


3 months 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 $350Nvidia GTX 1070 $350Samsung 850 Evo 250GB $70
AMD Ryzen 5 1600 $155Nvidia GTX 1060-6GB $204Samsung 850 Evo 500GB $89
Intel Core i5-8600K $260Nvidia GTX 1080-Ti $808Samsung 850 Pro 256GB $163
Seagate Barracuda 1TB (2016) $45Corsair Vengeance LPX DDR4 3000 C15 2x8GB $115SanDisk Extreme 64GB $43
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $780SanDisk Extreme 32GB $48
WD Blue 1TB (2012) $45Corsair Vengeance LPX DDR4 3200 C16 2x8GB $125SanDisk Extreme 16GB $22
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