HDMI 2.1 specification has been announced by the HDMI Forum. It will support Dynamic HDR and 8K resolution at 60 frames per second. But to support these features, new 48G HDMI cables are needed which allows bandwidth up to 48Gbps. Refer to the article below from Digit Trends.
Are expensive HDMI cable with buying? Digital Trends has asked the expert, the short answer is no. In terms of picture quality, there’s no different.
HDMI, Display Port, DVI and VGA are 4 display connection technologies that are used for computer monitors and televisions. So which one should you use? In short you should use HDMI
HDMI 2.0 doesn’t require changes in cables, see the following article from Digital Trends:
HDMI 2.0 Explained
HDMI 2.0 specification has been published, expect higher bandwidth
HDMI 2.0 specification is published