What is the difference between HDMI 1.2 and HDMI 1.3 specifications?
There are a number of differences between the 1.2 and 1.3 HDMI specifications. The main differences of note are High Speed, Deep Colour, Lip Synch and HD Lossless Audio Formats. Specifications for HDMI went from 1.2 to 1.2a, then 1.3, 1.3a and the latest which is 1.3b. The testing for 1.2a and 1.3 were essentially the same so a number of cables are labeled 1.3 which are in fact not able to do the 1.3b specifications. The key factor to look for if you are wanting to have a true 1.3b cable is whether it is high speed or not.
