Originally Posted by VirusKiller
Can these 2.1 features be added to 2.0 devices, or is 2.1 completely different silicon?
It appears so. "Version 2.1 of the HDMI Specification is backward compatible with earlier versions of the Specification and is available to all HDMI 2.0 Adopters".

Source : HDMI.org

~M~

Mostly harmless. Comfortably numb.