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Understanding the Different HDMI Versions (1.0 to 2.0)

by September 11, 2013
HDMI Versions - Keep Up!

HDMI Versions - Keep Up!

HDMI has changed versions so many times it's been hard to keep up for most people. We've talked about the versions as part of other articles and documents, but it seemed fitting that we'd formulate and maintain a definitive document outlining the changes in a straightforward and easy-to-digest manner for all concerned.

Hopefully this article helps you understand the format differences and aids in your ability to discern what features are important to you as you shop for HDMI-equipped products.

HDMI 1.0

Release date: December 2002

Specs:

  • Single-cable digital audio/video connection with a maximum bitrate of 4.9Gbps.
  • Supports up to 165Mpixels/sec video (1080p at 60Hz or UXGA)
  • 8-channels of 192kHz/24-bit audio (PCM)

Abstract: The original HDMI v1.0 spec was and remains sufficient for most purposes. The reason is that it is a solid backwards-compatible format that can , through PCM audio handle all of the high definition audio formats present today. The key is having a player that can decode these native HD audio formats to uncompressed PCM. DSD and DVD-audio cannot be natively sent over HDMI 1.0. What HDMI 1.0 fails to do, is account for additional bandwidth provided by Deep Color (10- 12 and 16-bit color depths). It also does not support the new xvYCC color space.

Practical Issues and tips: Most CableTV set-top boxes use HDMI 1.0. The maximum output for this spec is 1080p at 60Hz with 8-bit color depth. Regardless of any display of higher version of HDMI you may have, the source will always limit the maximum bit-depth potential. An HDMI 1.0 device can still pull 8 channels of uncompressed PCM audio and as is perfectly fine for most users.

HDMI 1.1

Release date: May 2004

Specs:

  • Added support for DVD Audio
  • Slight mechanical and electrical spec changes

Abstract: HDMI 1.1 simply added the ability for the system to transmit DVD-Audio signal over the cbale form the player to the receiving device. If both devices are rated to v1.1 then a DVD-Audio signal can be sent and received. Please note that by "DVD-Audio" we mean the high resolution audio format, not the audio present on a typical DVD disc.

Practical Issues and tips: HDMI 1.1 is very common and was the first spec to hit the mass market apart from CableTV set-top boxes. Many AV receivers came out with this spec and are fine for handling DVD-Audio and uncompressed PCM audio.

HDMI 1.2

Release date: August 2005

Specs:

  • Added DSD (Direct Stream Digital) support, allowing native transmission of Super Audio CD (SACD) content at up to 8 channels
  • Enabled and acknowledged an HDMI Type A connector for PC-based sources
  • Permitted PC sources to use native RGB color-space with the optional ability to also support the YCbCr color space for consumer electronics applications
  • Mandated that HDMI 1.2 and later displays support low-voltage sources such as those found with PCI Express technology (the current display interface standard for PC video cards)

Abstract: HDMI 1.2 was the biggest jump since the introduction of HDMI. It really brought the PC market into focus and was developed and announced so as to compete better with the emerging VESA DisplayPort standard. For those still clinging to their universal DVD players, HDMI v1.2 finally delivered the promise of a true one-cable solution for all current high-definition audio sources.

Practical Issues and tips: If you want to utilize a fully native universal DVD player without converting the SACD to PCM then HDMI 1.2 is required. We've found that if the player does a good job at conversion, however, v1.2 isn't always that important.

HDMI 1.2a

Release date: December 2005

Specs:

  • Fully specified Consumer Electronic Control (CEC) features, command sets, and compliance tests
  • Minor changes to CEC (Consumer Electronic Control) spec

Abstract: This incremental change clarified one of the earlier promises of HDMI, Consumer Electronic Control - a feature that promised "smart" interoperability between components. Unfortunately, this wasn't exactly standardized across the board and, as a result, nearly all manufacturers products only interface within their own brands. Of all things, this is the most disappointing failure of HDMI to-date.

Practical Issues and tips: This is a common format for manufacturers using CEC. There is no practical reason to prefer 1.2a over 1.2. If you don't intend to use the native DSD signal from an SACD player via HDMI, v1.1 is just as good as 1.2 or 1.2a.

HDMI 1.3

Release date: June 2006

Specs:

  • Increased single-link bandwidth to 340 MHz (10.2 Gbps)
  • Optionally supports 10-bit, 12-bit, and 16-bit "Deep Color" per channel (over one billion colors) up from 8-bit
  • Allowed the use of xvYCC color space (previously just sRGB or YCbCr)
  • Incorporated automatic audio "lip" syncing capability
  • Supported output of native Dolby TrueHD and DTS-HD Master Audio streams for external decoding by AV receivers
  • Made available a new Type C "mini" connector for devices such as camcorders
  • Added gamut Metadata transmission capability
  • Added Reference Cable Equalizer mandate to high frequency displays to recapture degraded copper cable signal

Abstract: To be plain, this update was a complete disaster. First of all, nobody asked for HDMI 1.3, except perhaps the companies behind the new high definition audio formats. Of course TrueHD and DTS-HD, the lossless audio codec formats used on HD DVDs and Blu-ray Discs could be decoded into uncompressed audio by the players. This makes 1.3 irrelevant for audio. What made HDMI 1.3 such as disaster was the increased bandwidth requirements - which hit an already suffering cable market with new requirements for digital signal transmission. Before HDMI 1.3, it was almost impossible to get a non-active copper HDMI cable to pass 1080p at distances greater than 50 feet. After HDMI 1.3, with the addition of Deep Color, that distance shrank to less than 20 feet, causing industry-wide failures on installed cabling systems.

Expensive active solutions started coming on-board to alleviate some of the problems within several months but even today there is a large amount of consumer confusion regarding cable certification and how far a signal will travel over copper cables. The spec also mandated that HDMI 1.3-compliant displays (sinks) which took advantage of high frequency content (Deep Color) must implement built-in cable equalization to help compensate for cable losses through copper cables. Thanks to several companies dedicated to certifying their products for specific distances, this issue is slowly becoming more manageable. The first product on the market with HDMI 1.3 was the PlayStation 3 gaming console.

Practical Issues and tips: HDMI 1.3 is a requirement for Deep Color support or use of the new xvYCC expanded color space. If high definition audio is important to you, you still may not need v1.3 if your player can decode the native HD audio formats into uncompressed PCM audio. This uncompressed audio, up to 8 channels, can be sent over HDMI 1.0.Typically, 24p support coincides with v1.3, however this is nothing more than coincidence of when both format and spec came into popularity.

HDMI 1.3a

Release date: November 2006

Specs:

  • Cable and Sink modifications for Type C
  • Source termination recommendation
  • Removed undershoot and maximum rise/fall time limits.
  • CEC capacitance limits changed
  • RGB video quantization range clarification
  • audio control commands added to CEC and commands for timer control brought back in an altered form
  • Concurrently released compliance test specification included

Abstract: An incremental change, v1.3a is mostly an adjustment for manufacturers utilizing CEC features as well as those integrating the new Type C connector (seen only in smaller form factor products and quite rare to-date).

Practical Issues and tips: There is no consumer-focused practical difference between HDMI v1.3a and v1.3.

HDMI 1.3b

Release date: March 2007

Specs:

No difference in features, performance or function over HDMI 1.3a.  HDMI 1.3b defines testing for products based on the 1.3a spec.

Abstract: HDMI 1.3b does not add anything over 1.3a.  It simply adds parameters for testing products.

Practical Issues and Tips: There is no consumer-focused practical difference between HDMI v1.3a and v1.3b.

HDMI 1.3b1

Release date: November 2007

Specs:

  • No difference in features, performance or function over HDMI 1.3a.  HDMI 1.3b1 defines testing for products based on the HDMI type C Mini connector.

Abstract: HDMI 1.3b1 does not add features or performance to HDMI 1.3a.  It simply adds parameters for testing products that use the HDMI type C Mini connector.

Practical Issues and Tips: There is no consumer-focused practical difference between HDMI v1.3a and v1.3b1.

HDMI 1.3c

Release date: August 2008

Specs:

  • No difference in features, performance or function over HDMI 1.3a, but rather testing for products based on active HDMI cables.

Abstract: HDMI 1.3c does not add features or performance to HDMI 1.3a.  HDMI 1.3c simply adds parameters for testing products based on active HDMI cables.

Practical Issues and Tips: There is no consumer-focused practical difference between HDMI v1.3a and v1.3c.

HDMI 1.4

Release Date: May 2009

Specs

  • Ethernet over HDMI: Adds support for ethernet over HDMI for connected devices.
  • Audio Return Channel:  Allows an HDMI-connected TV with a built-in tuner to send audio data "upstream" to a surround audio system, eliminating the need for a separate audio cable. 
  • 3D Support: Defines input/output protocols for major 3D video formats, paving the way for true 3D gaming and 3D home theater applications. 
  • Support for 4K x 2K resolution (3840 x 2160) at 24Hz, 25Hz, and 30Hz and 4096 x 2160 at 24Hz.
  • Real-time signaling of content types between display and source devices enables a TV to optimize picture settings based on content type 
  • Additional Color Spaces – Adds support for sYCC601, AdobeRGB, and AdobeYCC601, which are used in digital photography and computer graphics
  • HDMI Micro Connector – A new, smaller connector for phones and other portable devices, supporting video resolutions up to 1080p. 
  • Automotive Connection System – New cables and connectors for automotive video systems, designed to meet the unique demands of the motoring environment

Abstract: A major update that brings support for 3D, Ethernet network, bi-directional audio communications, and increased support of digital photography and digital computer color space standards.

Practical Issues and tips: HDMI 1.4's biggest feature is 3D support and home 3D viewing; Ethernet over HDMI (eliminating the need for a separate ethernet cable run); Audio return channel will further reduce cable clutter by allowing your TV to send its audio to your receiver without the need for an additional audio cable run; the HDMI micro connector brings HDMI to smaller devices and mobile; and the support for photographic and computer color spaces which makes HDMI a viable connector on cameras and computers.

HDMI 1.4a

Release Date: March 2010

Specs:

  • Added 3D format for broadcast content
  • Abstract: An incremental change to allow broadcast support of 3D content.

HDMI 1.4b

Release Date: October 2011

Specs:
  • Enabled 3D 1080p video at 120 Hz so that each eye can receive full HD (1080p 60Hz—or 120 Hz total) per Eye

Abstract: An incremental change to allow for Full HD (1080p) viewing of 3D content.

Practical Issues and tips: Allows for 3D content to be viewed in full HD.

HDMI 2.0

Release Date: September 2013

Specs:

  • Increases bandwidth to 18Gbps
  • Resolutions up to [email protected]/60 (2160p), (4 times the clarity of 1080p/60 video resolution)
  • Up to 32 audio channels 
  • Up to 1536kHz audio sample frequency
  • Simultaneous delivery of dual video streams to multiple users on the same screen
  • Simultaneous delivery of multi-stream audio to multiple users (Up to 4)
  • Support for the wide angle theatrical 21:9 video aspect ratio
  • Dynamic synchronization of video and audio streams
  • Updated CEC extensions for more expanded command and control of consumer electronics devices through a single control point
  • Support for 4:2:0 chroma subsampling
  • Support for 25 fps 3D formats
  • Backward compatible with high speed (category 2) HDMI cables

Abstract: This is a major update that increases bandwidth to 18Gbps and includes support for 4k video—including dual video to the same display to multiple users.  Audio is increased from 8 to 32 channels including simultaneous delivery of multichannel audio to a maximum of four users.  Audio sample frequency is increased to 1536kHz.

Summary

We'll be sure to keep this document up to date as soon as any HDMI changes are made and will attempt to clarify any questions or issues raised by readers when going through this list. HDMI seems confusing at first, but if handled well by a manufacturer, the differences can be nearly transparent to consumers. The difficulty comes when selecting budget products that may not implement all of the capabilities needed to maximize the potential of HDMI. In these scenarios it's important to not just pay attention to the version of HDMI, but how HDMI is utilized within the product. For example, HDMI "switching" on a receiver implies that no audio is pulled from the HDMI cable, however if the receiver functions as an HDMI "repeater" then users can expect to pull at least multi-channel PCM audio from the connection.

Stay tuned, because if the past is any indication of the future (and it is) HDMI isn't done yet and will continue to evolve in the years to come.

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About the author:

Clint Deboer was terminated from Audioholics for misconduct on April 4th, 2014. He no longer represents Audioholics in any fashion.

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Recent Forum Posts:

Bucknekked posts on November 29, 2017 17:16
pewternhrata, post: 1222459, member: 18678
I get confused with cable specs. From what I understand there is no such thing as a 1.4 or 2.0 hdmi cable. Only with or without Ethernet. I do get confused when manufactures label cables as high speed, I thought they were all the same. An hdmi cable bought almost 10 years ago and I don't seem to have any issues, am I missing something?
HDMI cables are an area where sellers profit and new owners of HDMI products often fall victim to upselling.
I have a number of 10 year old HDMI cables that work just fine. The upsell by a vendor is of course, “you just bought that new TV, it would be a shame to use that nasty old slow cable with it. Here's a new ”high speed“ cable for an extra $100 bucks.” Shame works.

Direct from the Blue Jeans HDMI cable explanation:
Data Rate
Many cables will tell You the amount of data they are capable of pushing through. These will be either 4.95gbps, 10.2gbps or 18gbps. These will often determine the speed of the cable with 4.95gbps pushing 720p, 10.2gbps pushing 1080p and 18gbps pushing 4k. 10.2gbps is also capable of pushing through 4k, but only at 30hz.

(End of quote from Blue Jeans)

These numbers are also misleading a bit because the the cables are made up of (4) pairs of twisted pair wires. 1 pair carries clock signals. The other 3 pairs carry color signals and sync signals. The rating of 10.2 gbps is misleading because nothing within the cable moves at that speed. It is merely the sum of the individual twisted pair. They do it that way since it comes up with a bigger number ! The individual pairs don't do much over 2.97gbps. But salesman will take advantage of “bigger numbers” whether or not they do the same thing or not.

Length also matters as do the gauge of the wires within the cable. A skinny but really long Wal-mart special might reach across the room but not carry a full load. A short fat cable of the same vintage and rating may carry the entire rating of the cable. Its all 1's and 0's to be sure, but signals do degrade over a length of wire so there are possibilities for problems. Many ‘standard’ cables will carry a load up to 45 feet of length and ‘high speed’ cables up to 25 feet of length. Will they work at longer distances : yes.

You mentioned “with or without ethernet” as a potential issue. At HDMI 1.4 the OPTIONAL feature of ethernet came in to the picture. It did not change the cabling pattern or construction. It introduced the optional feature of assigning one of the existing pairs of wire an additional task. It is either implemented or not in your attached equipment over the very same cable. No cable changes. This would be the infamous “Audio Return Channel (or ARC)” feature of HDMI. A true pain in the ass for many HDMI users.

I have rambled on far too long, but there is a fair amount of confusion around cables. Vendors love that. It gives them a chance to explain away the confusion and that explanation almost always results in the sale of a new cable.
Trey posts on November 29, 2017 16:01
pewternhrata, post: 1222459, member: 18678
I get confused with cable specs. From what I understand there is no such thing as a 1.4 or 2.0 hdmi cable. Only with or without Ethernet. I do get confused when manufactures label cables as high speed, I thought they were all the same. An hdmi cable bought almost 10 years ago and I don't seem to have any issues, am I missing something?

There is a difference between High Speed and Standard cables. Standard HDMI cables (most 1.4 HDMI cables are standard) can only support up to [email protected] High Speed cables (most HDMI 2.0 are highspeed) can support higher bandwidth for [email protected] 60hz. If you are watching TV then standard is fine because it's only 24 fps but if you are gaming you want the 60hz. I'm not sure if the connectors themselves makes a difference or is it only in how the cable is designed (lower gauge?).
pewternhrata posts on November 28, 2017 21:10
Trey, post: 1222439, member: 77198
Hi,

I am upgrading my 7 yr old 1080P TV to a 4K HDR TV. I am running my 1.4 HDMI cables through a wall plate which was also labelled as HDMI 1.4. I will be playing 4K games on my X box One along with watching 4K content so I am planning on upgrading to the highspeed HDMI cables. My question is do I need to also upgrade the HDMI connector in my wall plate?

I get confused with cable specs. From what I understand there is no such thing as a 1.4 or 2.0 hdmi cable. Only with or without Ethernet. I do get confused when manufactures label cables as high speed, I thought they were all the same. An hdmi cable bought almost 10 years ago and I don't seem to have any issues, am I missing something?
Trey posts on November 28, 2017 18:21
Hi,

I am upgrading my 7 yr old 1080P TV to a 4K HDR TV. I am running my 1.4 HDMI cables through a wall plate which was also labelled as HDMI 1.4. I will be playing 4K games on my X box One along with watching 4K content so I am planning on upgrading to the highspeed HDMI cables. My question is do I need to also upgrade the HDMI connector in my wall plate?
TLS Guy posts on January 23, 2017 14:13
tyee, post: 1168380, member: 45652
I'm still waiting for glass fiber optic cables between all devices. How long has the communication industry been using them,…over 20 years…come on, lose the copper. You will never ever fill the bandwidth of a fiber cable to show a picture no matter how high the resolution ever gets. No further upgrades needed in hardware anyway, just protocols for the manufacturers. The cables are also cheap now. They do need a better consumer connector to hide the end so we don't get our grubby hands on them until it's plugged in, but that's it. You say oh, the transmitters and receivers are expensive, well maybe not if millions are made. It will happen sooner or later, as a matter of fact Theta digital did use them in the 80's for a while.

I have been advocating this for years.

Fiber would have a longer distance between units, and would stop ground loops dead in their tracks.

The only downside, is no control voltage, but you could use a light code instead.

Of course HDMI is a two way communication, but so is a telephone. It would mean receiver and transmitter both ends of the cable which would incur a little more expense.

I think this would make receivers and the rest of the chain more reliable. The HDMI connector as it is, is a real mess. So if it increased price, which I think it would, I would still be in favor of going in that direction.
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