Editor's blog: Battlefield 4 Face-off Preview Q&A ("Xbox One Has Issues With Full-Range RGB")

[ethomaz]

Osc89 said:
Cool, another variable. If we add on the fact that the PS4 version had to produce 16 more colours, the PS4 is now up to 131% more powerful lol.

It is not work like that... the internal image is generate with all 32bits colors but to support old HDTVs there is a option to convert the signal to limited-RGB... so if there is any overhead is to use limited-RGB and not full.

In any case this conversion is done by the own HDMI output... so no processing waste at all.