HDMI 2.0 Spec Basics
- HDMI 2.0 Equipment 100% backward compatible with all earlier HDMI standards and features
- Max bandwidth increases from 10.2 Gbps to 18 Gbps
- 4K@50/60 (2160p) video, potential for 3D @4K
- Up to 1536kHz audio sample rates
- Up to 32 audio channels
The HDMI 2.0 spec does NOT define or require new cables or connectors, according to the information the HDMI Forum has released so far. Although the testing specification for HDMI 2.0 has not yet been established, and there are no cables that can be officially labeled as “HDMI 2.0 Compliant,” HDMI has stated that all current High Speed cables are capable of transmitting 18 Gbps when used with HDMI 2.0 electronics at both ends, and are therefore compatible with all HDMI 2.0 features. This is accomplished using signal processing that will be employed in all HDMI 2.0 hardware. For compatibility with all HDMI 2.0 features, new cables are not required for customers with High Speed cables, including AudioQuest High Speed HDMI cables.
In addition to the fact that HDMI 2.0 equipment will be 100% backward compatible with features from all previous versions of the HDMI spec, it’s also important to note that even when HDMI 2.0 equipment is used, bandwidths above the HDMI 1.4 maximum of 10.2 Gbps aren’t required unless video signals higher than 4K@30p are transmitted over the cable. Currently no such source material is available to consumers. Nearly all movie material at 4K would be 4K@24p for example.
Standard Speed cables will function with HDMI 2.0 electronics, but may not transmit higher bandwidth than they do with current HDMI 1.4 (or earlier) equipment. This means that a Standard Speed cable capable of transmitting 1080p at 16 meters will continue to be capable of transmitting 1080p when used with HDMI 2.0 electronics.
- All AudioQuest High Speed HDMI cables (all AQ HDMI cables up to 10 meters) are capable of transmitting 18 Gbps signals, including 4K@60p and 4K 3D, when used with HDMI 2.0 electronics
- Standard Speed cables will function with HDMI 2.0 electronics, but may not transmit higher data rates than they do with the current HDMI 1.4 (or earlier) equipment.
- HDMI 2.0 electronics are 100% backward compatible with features of all previous HDMI versions
- Increased bandwidth of HDMI 2.0 is only required for video signals beyond 4K@30p
- HDMI 2.0 displays and electronics will not be widely available until 2014
Link to HDMI LLCs FAQ of, “does HDMI 2.0 require new cables?” click here.