Average Bench: 74.2% (7th of 639)

Based on 4,925 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For real world usability this is currently the best 64GB flash drive (superseded by the Ventura Ultra - 2014).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]


Good average bench

The SanDisk Extreme USB 3.0 64GB averaged 25.7% 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 9.95MB/s
Avg. 4K Random Write Speed 8.5MB/s

Terrible consistency

The range of scores (95th - 5th percentile) for the SanDisk Extreme USB 3.0 64GB is 82.4%. This is a particularly wide range which indicates that the SanDisk Extreme USB 3.0 64GB performs inconsistently under varying real world conditions.


Avg. 4K Random Read Speed 9.2MB/s
Avg. Sequential Read Speed 181MB/s

Average Bench

(Based on 4,925 samples)
Min Avg Max
28 Read 181 251
11.4 Write 90.2 185
11.2 Mixed 91.7 190
137% 121 MB/s
Min Avg Max
4.49 4K Read 9.2 12
3.33 4K Write 8.5 10.8
1.48 4K Mixed 3.76 4.76
451% 7.15 MB/s
Min Avg Max
8.55 DQ Read 11 12.8
6.55 DQ Write 9.95 11.7
3.09 DQ Mixed 4.28 5.12
524% 8.39 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest USB (mainstream) averages a speed of 100%
59GB free, PID 5580
Operating at USB 3.0 Speed
Read 251
Write 186
Mixed 188
256% 208 MB/s
4K Read 10.2
4K Write 9.6
4K Mixed 4.29
510% 8.03 MB/s
DQ Read 10.2
DQ Write 8.85
DQ Mixed 4.27
484% 7.77 MB/s
27GB free, PID 5580
Operating at USB 3.0 Speed
Read 242
Write 121
Mixed 131
189% 165 MB/s
4K Read 10
4K Write 9.39
4K Mixed 4.06
495% 7.83 MB/s
DQ Read 10.4
DQ Write 9.39
DQ Mixed 4.2
500% 7.99 MB/s
50GB free, PID 5580
Operating at USB 3.0 Speed
Read 255
Write 98.9
Mixed 163
197% 173 MB/s
4K Read 11.2
4K Write 7.61
4K Mixed 4.46
452% 7.76 MB/s
58GB free, PID 5580
Operating at USB 2.1 Speed
Read 40.9
Write 40.3
Mixed 40.1
52% 40.4 MB/s
4K Read 7.76
4K Write 10.7
4K Mixed 4.69
551% 7.71 MB/s
DQ Read 8.69
DQ Write 11.5
DQ Mixed 4.49
574% 8.21 MB/s
20GB free, PID 5580
Operating at USB 2.1 Speed
Read 41.6
Write 39.6
Mixed 35
49% 38.7 MB/s
4K Read 8.69
4K Write 9.63
4K Mixed 3.28
471% 7.2 MB/s
DQ Read 9.47
DQ Write 8.81
DQ Mixed 3.67
460% 7.32 MB/s
17GB free, PID 5580
Operating at USB 2.1 Speed
Read 39.5
Write 37.6
Mixed 11
35% 29.4 MB/s
4K Read 9.37
4K Write 8.74
4K Mixed 4.35
480% 7.49 MB/s
DQ Read 10.4
DQ Write 8.96
DQ Mixed 4.09
482% 7.8 MB/s
4,925 MORE »


Approx. $72 @ launch in Jun '12
AmazonUS $3521 hrs
Send price feedback
Typical Extreme USB 3.0 64GB Builds (Compare 9,159 builds) See popular component choices, score breakdowns and rankings.
Gaming 60%
Desktop 67%
Battle cruiser
Workstation 40%
Speed boat

Motherboard: Asrock Z77 Extreme4 - $167

EDIT WITH CUSTOM PC BUILDER Value: 72% - Very good Total price: $910

Popular Extreme USB 3.0 64GB compatible motherboards:

How Fast Is Your USB? (Bench your build) Size up your PC in less than a minute.

Welcome to our freeware 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 upgrades.

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How it works

  • - Download and run UserBenchMark (UBM).
  • - CPU tests include: integer, floating and string.
  • - GPU tests include: six 3D game simulations.
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USB Flash Drive Rankings (Price vs Performance) May 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.
  • Fastest real world speed - Real World Speed measures performance for typical flash usage patterns.
  • Best value for money - Value for money is based on real world performance, price and capacity.
  • Raw speed comparison - Raw speed readings.


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.

Extremely fast for everything, decent price.


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


4 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


5 months ago.

Does anyone tried to run Windows 8.1 on this pendrive? Complete installation, don't want usb boot for installation


7 months ago.

Fastest USB I've Have. Recomended Item


4 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


2 months ago.


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


1 month ago.

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


11 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.


18 months ago.

I liked a usb drives comparing


5 years ago.

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

CrystalDiskMark Benchmark Speed Test


19 months ago.

it's really fast with 3.0 port


21 months ago.

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


2 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

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Intel Core i7-7700K $285AMD RX 480 $300Samsung 850 Pro 256GB $163
Seagate Barracuda 1TB (2016) $44Corsair Vengeance LPX DDR4 3000 C15 2x8GB $180SanDisk Extreme 64GB $35
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $961SanDisk Extreme 32GB $30
Seagate Barracuda 2TB (2016) $60HyperX Fury DDR4 2133 C14 2x8GB $226SanDisk Extreme 16GB $20
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