The 20.2-megapixel camera weighs in at 770 grams for the body alone, about 90 grams lighter than the 5D Mark III. Like the Mark III, the camera uses a DIGIC 5 Image processor and has an expanded ISO range of 50 to 102400, making this sensitive for low-light environments. The 6D has 11 auto-focus points and can shoot 4.5 frames per second continuously. It also has an automatic high-dynamic range mode that saves a final HDR composite, though not the individual files themselves.
On the HD video front, the 6D can shoot continuous footage up to 29 minutes and 59 seconds at 1080p at 30, 24 and 25 frames per second; 720p at 60 and 50 fps; and standard video at 30 and 25 fps. Unlike most SLRs, the 6D records to a SD card instead of a CF card. (via Canon Debuts the 6D, its Lightest, Smallest Full-frame SLR (Photos) - Forbes)