What is the difference between HDMI 1.4 and HDMI 2.0?

HDMI 1.4 supports 4K video frame rates up to 30p, while HDMI 2.0 supports 4K video frame rates up to 60p. The HDMI 2.0 standard also allows you to display 4K videos encoded using the Main 10 profile (10 bits of color depth with 4:2:0 chroma sampling) and HDR.

XTx43, XDx33, and 4Kx42 players support the HDMI 2.0 standard and can play 4Kp60 video; however, to play 60p videos, your 4K display must also support the HDMI 2.0 standard.

Note that HDMI 2.0 is backwards compatible with HDMI 1.4, so you should encounter no issues using HDMI-2.0-compatible players with an HDMI 1.4 display.