HDMI 2.1a is a new version of the standard that we have all been using for over 15 years. It will support features like Dynamic HDR, which will allow HDR and non-HDR (also called SDR) content on the same screen to show properly. You’ll also get the ability to see 4K content at 120 frames per second. For those 8K fans, you’ll be able to see
Not all TVs support ARC despite coming out after HDMI 1.4 was launched as a standard, but nearly all will. reviewing scores of sets and writing about everything from 8K to HDR to HDMI 2.1. He
To connect a PC or laptop to one monitor only, and the monitor has both a DisplayPort and HDMI input, use either. DisplayPort might be best as it is optimized for PC use. To connect a PC or laptop to a TV, where the TV only has HDMI inputs, and where the PC has an HDMI output, use that option. If the PC or laptop only has a DisplayPort output
hdmi 2.0 can not do 4k 120hz only hdmi 2.1 can. limited to 4k 60hz. hdmi 2.0 can do 1440p 144hz but not 165hz for 165hz you need dp. its hdmi 2.0 bandwidth limitation. Have to correct you on this. HDMI 2.0b CAN do 4k @ 120hz with 8-bit color and 4:2:0 chroma subsampling.
HDMI 2.1 does have better support on the GPU front: all of AMD Radeon 5000 and 6000 cards have it, as does Nvidia's RTX 30 lineup. Monitors with HDR enabled (as long as it's supported by the Zo5Pv.