450/ 460 deep coloer 30 bit or 36 bit or 48 bit

[yardn]

I want to purchase a video card NVIDIA 450 or 460  But not registered
What kind of  deep coloer 30 bit or 36 bit or 48 bit   
450 IS 1.4A  HDMI
460 is 1.3a hdmi

http://www.gigabyte.com/products/product-page.aspx?pid=3592#ov
http://www.gigabyte.com/products/product-page.aspx?pid=3529#ov

http://www.nvidia.com/object/product-geforce-gts-450-us.html
http://www.nvidia.com/object/product-geforce-gtx-460-us.html

http://en.wikipedia.org/wiki/HDMI#Version_1.4
As it says Quote :
Note that a given product may choose to implement a subset of the given HDMI version. Certain features such as Deep Color and xvYCC support are optional

i have tv support deep coloer and cabel hdmi  support deep coloer