Audio. DisplayPort 1.4 provides a maximum audio sampling rate of 1,536 kHz, compared to DisplayPort 1.2’s maximum sampling rate of 768 kHz.DisplayPort 1.4 has 32 channels compared to DisplayPort 1.2s eight channels. Our Pick. Amazon Basics DisplayPort 1.4. $9.59. Nope. HDMI 2.1 requires an HDMI cable to be certified at HDMI 2.1 with a minimum of 48 Gbps which is supposedly 10k/120hz. Currently, all 4k/60 HDMI cables are certified at 2.0 HDMI 2.0 is going to be the standard still for the next few years. And there again, there is no difference except for higher bandwith. HDMI is an old standard at this point, and there is a difference in capability between HDMI 1.4, HDMI 2.0, and HDMI 2.1. Most HDMI cables you can buy right now are at least HDMI 2.0, which can HDMI cables use a 19-pin arrangement with a standardized, non-reversible connector. The latest generation of the technology is HDMI 2.1, although HDMI 2.0 is still in use in a range of contemporary devices, and older HDMI cables are supported by more recent standards, so still see some use.
HDMI 2.0a supports HDR10, a popular HDR format. HDMI 2.0b supported HLG (hybrid log-gamma), a broadcasting-friendly HDR format. HDMI 2.1 supports multiple HDR formats, such as HDR10, HDR10+, HLG, and Dolby Vision. It introduced Dynamic HDR, which facilitated frame-by-frame and scene-by-scene HDR optimization.
If you have the choice between DisplayPort 1.4 (or 1.4a) and HDMI 2.0, DisplayPort would be the better option. In other cases, if a monitor only gives you the choice between, say, HDMI 2.0 and Mt0M2.
