Originally Posted by dnwolner
Thanks! If I understand correctly, both 1.3b and 1.4a are "High Speed". 1.4a adds an Ethernet channel. I'm getting the feeling I don't need 1.4a, but I read others on the thread that are using it anyway. Not sure there is an added benefit to PQ.
Based on the following from http://www.practical-home-theater-gu...mi-cables.html
, I'm confused all over again.
It says Ver. 1.4 also introduces support for 3D over HDMI - supporting common 3D formats and resolutions up to 1080p. Supported resolution to up to 4096x2160p24 or 3840x2160 at up to 30Hz.
HDMI Version 1.3 has brought about significant enhancements to the original HDMI specifications - with the most important being increasing the single-link bandwidth to 340 MHz or 10.2 Gbit/s data stream.
It also supports Deep Color with 30-bit 2560x1600p75, 36-bit 2560x1600p60, and 48-bit 1920x1200p60 xvYCC color space compared to the original 24-bit sRGB or YCbCr specified in previous HDMI versions.
Other optional features include output of Dolby TrueHD and DTS-HD Master Audio streams for external decoding by AV receivers; it incorporates automatic audio syncing or auto lip sync capability; and as indicated earlier on, Version 1.3 has brought with it definitions for HDMI Cable categories 1 and 2 - this apart from defining a new mini HDMI connector (Type C) for portable devices.
HDMI versions 1.3a, 1.3b, 1.3b1, and 1.3c mainly updated the list of CEC commands, and added HDMI compliance tests.
HDMI Version 1.4 - released earlier this year - has so far completed the relatively long list of HDMI versions and with it, there came a number of major additions to the already important additions brought about by Version 1.3. The most important additions related to version 1.4 are the addition of a 100 Mb/s HDMI Ethernet Channel (HEC) between HDMI connected devices and an increase in the supported resolution to up to 4096x2160p24 or 3840x2160 at up to 30Hz.
In addition, Ver. 1.4 also introduces support for 3D over HDMI - supporting common 3D formats and resolutions up to 1080p, an expanded support for color spaces designed specifically for digital still cameras like sYCC601 and Adobe RGB, an Audio Return Channel for upstream audio transfers over the same HDMI cable, a Micro HDMI Connector - that is almost half the size of a standard 19-pin HDMI connector, sort of equivalent to a mini USB connector, and an Automotive Connection System for better in-vehicle HDMI use.