SanDisk Extreme 32GB Class 10 SDHC-I

SanDisk Extreme 32GB Class 10 SDHC-I

SanDisk Extreme is part of SanDisk's higher end range, sitting below the Extreme Pro and above the Ultra range.
SanDisk says:

The SanDisk Extreme SDHC or SDXC UHS-I Memory Card offers enough speed, capacity, and durability to meet the demands of advanced photographers and passionate shutterbugs alike. Ideal for use with advanced cameras and HD camcorders, this card offers data speeds up to eight times faster than an ordinary memory card**, ensuring you'll never miss themoment.

Link:
http://www.sandisk.com.au/products/memory-cards/sd/extreme-uhs-1-45mbs/?capacity=32GB

SPECS:
Type: SDHC-I
Performance: Up to 45MB/s
Class: 10 (UHS-I)
Capacity: 32GB

ATTO:

Crystal Disk Mark:

Much like with SanDisk's own Extreme HD Video card, it seems as though the Extreme 45MB/s series have been limited by SanDisk. Another interesting thing to note is that Crystal Disk Mark didn't like the Extreme 32GB very much, showing very random results. It also performed significantly slower (22MB/s read) when formatted using PC. These results (as with all that are tested) were achieved after formatting the cards using the Camera (Nikon D600).

Results:
Read: 45MB/s
Write: 43MB/s

SanDisk Ultra 32GB

SanDisk Ultra 32GB
This a mid range SD card from SanDisk range. It's also one of the most widely available. SanDisk describes it as:

Combining fast performance and generous capacity, the SanDisk Ultra SDHC or SDXC UHS-I memory card is an ideal storage choice for compact to mid-range point-and-shoot cameras and camcorders. This versatile card offers twice the speed of an ordinary memory card**, so you can take more pictures with less lag time. These cards come in a variety of capacities and feature a shock-resistant, water and temperature-proof design. Don't miss the moment. Be ready with double the speed and the highest video performance.

SPECS:
Type: SDHC-I
Performance: Up to 30MB/s
Class: 10 (UHS-I)
Capacity: 32GB

ATTO:

 Crystal Disk Mark:

  

Both test show similar results, with read speeds being around 42MB/s and write 12MB/s. Interestingly, this has slower write speeds than SanDisk's own Extreme HD Video, which managed to achieve 20MB/s. Read speeds show the advantage of UHS-I which allows it to surpass the 30MB/s mark. 

Results:

Read: 42MB/s

Write: 13MB/s

SanDisk Extreme HD Video 16GB

SanDisk Extreme HD Video 16GB
It's not listed on SanDisk website anymore, as it's an older model. Originally designated as a card for those doing Video, it'll be interesting to see how it performs.

SPECS:
Type: SDHC
Performance: Up to 20MB/s
Class: 6
Capacity: 16GB

ATTO:

Crystal Disk Mark:

Both test show similar results. Interestingly, the read and write speeds are very similar at 22MB/s. This could be a limitation set by SanDisk themselves. Do note that there is another version of the Extreme HD Video available which uses the SDHC-I (UHS-I) interface with a claimed read of 30MB/s. These results are not to be confused with that model.

Results:
Read: 22MB/s
Write: 22MB/s

USB 2.0 vs USB 3.0; Patriot Supersonic Xpress 16GB

The Patriot Supersonic Xpress is a budget USB 3.0 from a name branded company. It has been on the market for a while now, making it ideal for this USB2.0 vs USB3.0 test. Patriot describes it as:

The Supersonic Xpress USB 3.0 flash drive brings the speed and
performance of USB 3.0 at an affordable price. Featuring a stylish cap-less
design that hides the USB 3.0 connector when not in use, the Supersonic
Xpress works like a pen to reveal the USB connector.

SPECS:
Read: Up to 80MB/s (spec sheet)/60MB/s (website)
Write: Up to 10MB/s

More info here:
http://www.patriotmemory.com/product/detail.jsp?prodline=7&catid=92&prodgroupid=214&id=1088&type=23

Crystal Disk Mark:

USB2.0



USB3.0


ATTO Disk Bench:

USB2.0


USB3.0


Both test show similar results. USB2.0 is limited to a real world cap around the 30MB/s mark. USB3.0 allows the Patriot to easily double it's read speed, but perhaps more interestingly, also achieve a slightly higher write of 26MB/s vs 20MB/s on USB2.0.

Results:
Read: 64MB/s
Write: 26MB/s