Essentially, it all comes down to bandwidth: The current bandwidth capacity for HDMI 2.0 is 18 Gbps, but HDMI 2.1 clocks in at a robust 48 Gbps. This increase in bandwidth allows HDMI 2.1 to transfer way more information; in a nutshell, this means higher-resolution video and higher frame rates.jorda13456 wrote: ↑ Can someone explain to me how the HDMI 2.1 thing works?
Is HDMI 2.1 Required for 120HZ refresh rate?
If my TV(LG C9) supports Hdmi 2.1, I won't need a receiver with hdmi 2.1?
Is the sole purpose of having a receiver with hdmi 2.1 for a high refresh rate or so that my surround sound system works through it?
Currently, HDMI 2.0 cables are needed to achieve a 4K picture at 60 FPS or an 8K picture at 30 FPS. HDMI 2.1, on the other hand, promises 4K resolution at 120 FPS, 8K resolution at 60 FPS, and a ceiling that will ultimately support 10K resolution—whenever the industry happens to reach that point.
From a Google search.