The short answer is that HDMI 2.1 enables 4K visuals up to 120Hz (and 8K at 60Hz) and adds a bunch of incredibly useful bonus features that can make your games look and sound better than ever. So, yes, you should definitely be looking for an HDMI 2.1-compatible TV if you’re playing on the latest generation of gaming devices.
At the same time, avoid using an HDMI 2.1 port for less demanding devices (that use HDMI 2.0b) when you have plenty of slower ports available. In most cases, an HDMI 2.1 port will be labeled as such on the back of the TV. You may also see labels like "4K 120Hz" or "8K 60Hz" on these ports instead.
The only way to do this is through an optical cable. And the only way to make that happen is through an HDMI to optical splitter. But all versions of this I can find are HDMI 2.0 which is only 4k@60 hz. Here is Astro’s $40 solution, notice every fifth review recognizes this problem. . My PS5, my TV, my HDMI cables are all 2.1 capable of 4k Nope. 2.1 can handle 1080p 360hz. Compare the pixel clock to 4k 120hz (which hdmi 2.1 can do uncompressed) and you'll see hdmi 2.1 can handle even more than 360hz in 1080p. It just a matter of monitor manufacturer implementation. Most manufacturers won't implement higher refresh rates from hdmi port but it's totally possible. HDMI, on the left, shadowed by two DisplayPort sockets on the right. The first version of DisplayPort offered notably better support for high resolutions at high refresh rates, thanks to having a These are monitors that professionals may very well use, and if they have a Mac Studio, the HDMI 2.0 port will limit what they can see. We're still glad that the Mac Studio has an HDMI port rather than not having one at all, but for a 'pro' use, it sure would have been nice to see Apple go all the way with HDMI 2.1. Next: Mac Studio Vs. Mac mini
But like a lot of standards, the standard is a mess and you can have a port claim to be HDMI 2.1 but not support the full 48Gbps that the spec calls for. And a lot of TVs will only have one regular HDMI 2.1 port and one eARC port with the rest being HDMI 2.0. For the Apple TV, even the newest one it thankfully doesn’t matter.
On a typical day, you can find him working desperately trying to get late-1990s/early-2000s PC games working at 4K and 16:9 ratio without crashing. displays GPUs HDMI HDMI 2.0 HDMI 2.1 monitors
I see that I never directly answered your HDMI 2.0 eARC port question, only indirectly. If you connect all your video sources directly to your TV using HDMI 2.1, you will get all the HDMI 2.1 features. While eARC is a new protocol released with HDMI 2.1, it's simply a new protocol that reuses the ethernet wires added to HDMI cables in HDMI 1.4.
Both HDMI 1.4 and 2.0 can handle a max resolution of 4K (4,096 x 2,160 pixels). However, because of the different frame rates, you will have a different experience in resolution. More specifically, HDMI 1.4 can work well with the 4K resolution at a frame rate of 24 FPS. You can also use it for lower resolutions, such as 1080p or 720p.
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Likely the HDMI port you've plugged into either: A. Doesn't support 4k60fps for some reason. B. The HDMI cable you're using isn't 2.0 or higher/doesn't recognize it as a 4k60fps. I'd suggest verifying the port can do 4k60fps, if it still doesn't work update the firmware on your TV then try again and/or try another HDMI cable that is at least 2.0.
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    • can you use hdmi 2.1 on hdmi 2.0 port