Looking forward to HDMI 2.1? You are going to need a new cable

Subject: General Tech | December 1, 2017 - 06:05 PM |
Tagged: hdmi, HDMI 2.1

The new HDMI spec announced earlier this week comes with a drawback, you are going to need new cables to take advantage of it.  The new spec needs to be able to deliver an impressive 48Gbps which current cables simply are not capable of providing.  That increased bandwidth will allow you to watch 4K content with 12 bits per colour channel at up to 120Hz assuming you can drive that much graphical content, which will provide a major challenge for AMD, NVIDIA and Intel in 2018.  The good news is that The Register confirmed the new cables will be backwards compatible, so you won't have to keep two separate HDMI cables handy.

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"The HDMI forum has released the HDMI 2.1 spec, and promised it can deliver 48Gbps if you buy new cables that support the jump from HDMI 2.0s 18Gbps."

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Source: The Register

December 1, 2017 | 07:57 PM - Posted by odizzido2 (not verified)

Nvidia's CEO is furious about this one weird cable. Click to find out why!

(Hint:VRR is a requirement)

December 4, 2017 | 09:23 AM - Posted by Power (not verified)

IIRC, Nvidia charged extra for 3D on TV.

December 2, 2017 | 07:39 AM - Posted by ipkh

I think if you have HDMI cable with Ethernet you won't need a new cable. Nominally the cables are all the same electrically, it's just the signalling that changes.

December 2, 2017 | 11:05 AM - Posted by SincereAnonymous (not verified)

Unless the new spec calls for better EM shielding? My 4k display gets all flickery and messed up if my cheap hdmi cable gets anywhere near the other jungle of cables. Doesn't happen with 1080p signal or thicker cables though.

December 2, 2017 | 12:17 PM - Posted by Zurv (not verified)

hrmmm.. cables are almost a non-issue. So what if you need new cables when you are going to need new of EVERYTHING else too :)
New TV with 2.1, new AVR with 2.1, new video card with 2.1, etc. The cables are the cheap part.
My dreams for next year are 77" oled with 2.1 and new nvidia GPU with 2.1.

December 2, 2017 | 12:27 PM - Posted by NyteRazor (not verified)

Make sure the new TV has ATSC 3.0 tuner, if there is a TV with one yet.

December 3, 2017 | 12:21 AM - Posted by fuersliph

Exactly, they will be 5$ on monoprice.

December 3, 2017 | 11:57 AM - Posted by Oskars (not verified)

Does this (12 bit colour at 4k 120fps support) mean that "Quadro" and "Pro WX" cards most likely will move to HDMI?

December 5, 2017 | 09:44 PM - Posted by nagus

Thanks for article Jeremy.

Were you able to get a response from Nvidia?

Surely they must be enabling VRR support soon???

From what I've read they can even patch VRR support to HDMI 2.0 devices - gpus / display etc

Let the gsync-freesync war end - bad for consumers !

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