HDMI cables are just a dumb pipe. There is no such thing as an HDMI 1.4 or 2.0 cable.
There are only two different kinds of HDMI cables specified by the Industry:
- High Speed
- Standard
High Speed (with Ethernet) HDMI Cables will support the new higher bandwidths (up to 18Gbps). it called HDMI 2.0
The new version is called HDMI" 2.1 and it adds several new features including a new cable type.