What is the SD card speed required for 6d?

[karen.tao]

Does anyone know the write speed of the 6D?
Is the Sandisk Extreme Class 10 45mb/s fast enough?
Thanks

[brad-man]

I would recommend the newer 95Mb/sec version for a few dollars more...

http://www.amazon.com/gp/product/B007NDL56A/ref=dp_ob_title_ce]   [url]http://www.amazon.com/gp/product/B007NDL56A/ref=dp_ob_title_ce  [/url]

[brad-man]

http://www.amazon.com/gp/product/B007NDL56A/ref=dp_ob_title_ce

Oops. This one

[karen.tao]

I don't want to buy the extreme pro if the extreme is good enough though.
Does anyone know the actual write speed of the 6d or where I can the information?

[Mt Spokane Photography]

I'd get a card with a minimum write speed of 20mb/sec.
WATCH OUT.  Read the specs.  Write speeds are 1/3 and less of the card speed, which uses read speeds.
EXAMPLE:  $70 SANDISK 45 mb/sec card has a 10mb/sec minimum read speed!
The 64GB SDXC Memory Card Extreme Class 10 from SanDisk is a high-performance memory card. It improves upon the previous version's 30 MB/s max read / write speed by offering faster 45 MB/s performance. Minimum write speed is still 10 MB/s. These data rates get you ready for the next shot faster, and cut down on wait time when you're transferring your work from card to PC.

 
Get the 95mb/sec card that was recommended, and you'll get at least 20-30mb/sec minimum write speeds.  Max write speeds don't count for me.
http://www.bhphotovideo.com/c/product/824149-REG/SanDisk_SDSDXPA_064G_A75_Extreme_Pro_64GB_SDHC_SDXC.html

[karen.tao]

thanks guys, I appreciate the help. 

[Mt Spokane Photography]

The maximum write speed is based on a totally erased (new) card. Formatting a card does not erase it unless its a low level format.   Then the card has to first erase a block of data before it can write to it, and for a SD  card, its SLOW.
The 6D, like the 5D MK III will probably have a low level format function for SD cards which will totally erase a card, but it will take a long time, maybe 20-30 minutes depending on card size, so its best done in a computer where you don't run your battery down.