Final Verdict: HDMI 2.1 Is Better, but Only If You Have the Right Equipment. HDMI 2.1 is the new standard for the format, making it superior in every way to HDMI 2.0. As long as you have compatible devices, you’ll get a superior audio/video experience by making the cable switch.
HDMI-eARC. Now, the most current version of HDMI is HDMI 2.1. This version has brought the addition of 'eARC'. To put it as simply as possible, this new eARC function has built on the foundation of what ARC already created and has now made it stronger and more robust. It essentially raises the bandwidth and speed of the signal transmission. HDMI 2.1 will have the backing of the latest consoles and the majority of the newly released consumer electronics – continuing the same trend we’ve seen over the past 15 years or so. Leading us to conclude that, yes, whilst DisplayPort is the better standard, it is, unfortunately, the lesser used of the two. HDMI has been carrying pictures and audio from source to receiver since its inception in 2004. But when ARC launched in 2009, it opened up HDMI to sending audio both ways – known as
With 4:4:4 chroma subsampling, the refresh rate may go as high as 144 Hz. In such regards, HDMI 2.1 is better as it allows for the output of videos in 4K resolution at 120fps and 8K resolution at 60fps. At 4K resolution, HDMI 2.1 supports a maximum refresh rate of 120Hz, which doubles the frame rate compared to HDMI 2.0.
And then comes HDMI 2.1, which bumps the bandwidth to 48 Gbps. This bigger difference in bandwidth lets HDMI 2.1 cables to handle 4K resolution in higher frame rates – 4K at 120Hz and 8K at 60Hz
No, there are actually only 3 categories that you should be aware of; Standard, Highspeed and Premium. Standard HDMI Cable - is perfectly suited to support resolution outputs such as Sky HD 1080i 50 Hz 8-bit 4:4:4. Highspeed HDMI Cable - is guaranteed to deliver 3G 10.2 Gbps video transmission or resolutions such as 4K UHD 60 Hz 8-bit 4:4:4.
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    • difference between hdmi and hdmi 2.1