HDMI 2.0 and HDBaseT 2.0 Not Completely Compatible

Sections: Distributed video, Video

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HDMI 2.0 and HDBaseT 2.0 ConfusionGiven the fact that the two technologies were announced within weeks of each other, one might be inclined to think that HDBaseT 2.0 and HDMI 2.0. At the very least, given how consumer-focused HDBaseT 2.0 is, you can be more than a few consumers will look at the names and assume complete compatibility.

According to a new piece at CEPro by Jason Knott, though, HDMI 2.0 has one trick up its sleeve that HDBaseT 2.0 won’t be able to pull off. At least not for now:

HDMI 2.0 and HDBaseT 2.0 are not fully compatible when it comes to bandwidth. Transmitting 4K content over 60Hz requires the “full envelope” of 18Gbps bandwidth in HDMI 2.0, but HDBaseT 2.0 does not extend beyond the 10.2Gbps bandwidth found in HDMI 1.4.

Rut roh, Shaggy. Well, maybe. Whether or not this becomes an issue is totally dependent upon whether 1) any 60fps 4K “Ultra HD” actually makes its way into consumers hands and 2) said consumers actually care. At that time, there could be a fix, but it won’t be a quick one. From the same piece:

“HDBaseT does not support the full 18Gbps of HDMI 2.0,” admits Micha Risling, marketing chairman at HDBaseT Alliance. “If we see a need for the full 18Gbps, it will require a new chip, and the Alliance has started looking into this solution.”

Read on at CEPro for more revelations, including the fact that 4K via HDMI is probably going to require the use of active cables for runs any longer than three meters.

Read: [Distributing 4K Content over HDMI, HDBaseT Creates New Challenges]

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