The Fastest CF Cards for the Canon 1Dx

This is a part of our SD/CF/XQD Database. The data in the table below tracks the time (in seconds) it took to write 30 RAW and 30 Fine Large JPG to...

This is a part of our SD/CF/XQD Database.

The data in the table below tracks the time (in seconds) it took to write 30 RAW and 30 Fine Large JPG to the memory card. Timing commenced when the camera’s card status light illuminated, and stopped when the light went out. Each test cycle was performed three times, and the average is presented. Lower numbers are better.

The figure in the Burst column represents how many RAW photos the camera and card take in 30 seconds. Higher numbers are better.

Prior to each test, all cards were formatted within the camera. The same scene was photographed under the same illumination for all tests. The identical camera settings and lens were used throughout.

Card	Type	RAW	JPG	Burst
Transcend 1000x 16GB	CF	10.49	4.96	87
Transcend 1000x 64GB	CF	7.41	4.94	96
SanDisk Extreme Pro UDMA7 16GB	CF	7.02	4.66	103
SanDisk Extreme Pro UDMA7 32GB	CF	7.12	4.95	103
Lexar Pro 800x UDMA7 16GB	CF	15.91	5.07	60
Lexar Pro 800x UDMA7 32GB	CF	11.33	4.81	78
Lexar Pro 800x UDMA7 64GB	CF	9.16	4.78	91
Delkin 1050x UDMA7 32GB	CF	8.46	4.78	96
Delkin 1000x UDMA7 16GB	CF	7.44	4.68	101
Delkin 1000x UDMA7 32GB	CF	7.33	4.59	101