SD Card Speeds

[Frarike]

I just got the Sandisk Extreme 90MB/s 32gb as I thought it'd be good enough.

Through magic lantern I got 39MB/s for both read and write and on crystle disk mark.



Not sure which is most correct. On 70D so only need 41 write. Should I return and upgrade to extreme pro?

[eNnvi]

The SD controller on the camera is limited. For example 700D couldn't write faster than 40MB/s, the limit for 60D is about 20MB/s

[kkfok1031]

That means this new Sony Ultra Fast SD card will not achieve this speed on 5D mark 3?
http://wetpixel.com/articles/sony-announces-ultra-fast-sd-cards

[rsmith02]

No, and probably not on any other current camera either, as they weren't built to take advantage of a non-existent card. Are there even card readers that can make the most of its read speeds yet?