Yes, PS5 does come with an HDMI 2.1 cable out of the box. The size of the PS5 HDMI cable it comes with is about 1.5m or about five ft. long. This is enough to connect your PS5 to your TV if you have them relatively close to each other, on a TV shelf, for instance. But, the cable is sufficiently designed with the Ultra High-Speed specs meaning

Certified, UHS HDMI cables are really only useful at this point in time if you have devices that have the HDMI 2.1 chipsets in them and you are a gamer. Otherwise, the performance is the same for the HDMI 2.0 option sets. As for eARC, both connected devices need to support eARC if that's a feature you want to use.

There were some AVR's that had HDMI 2.1 capability but the chips they used were for DSC only. So they don't actually work. It may not be until next year for something to be out. For now you may just have to swap the cable. HDMI ports are rated for 10,000 insertions, so you should be fine. 1.

It is the only DVR box for 4K HDR according to Xfinity. While the 2.1 is designed for 8K and gaming, it does support 4K at 120Hz refresh rates, which my new TV will have. So what is the HDMI port on the XG1v4? your current cables will work fine with the xg1v4 HDMI 2 (.0 or .1 whichever is in use). there is no need for higher speed cables at

I have a monster HDMI 2.1 cable that does work and my two cable matters HDMI 2.1 active fiber cables work fine at the moment and I'm testing these at 4K 120Hz 10-bit color 444 Chroma. With HDMI 2.0 you're asking a max of 18 Gbps and now with HDMI 2.1 you can go all the way up to 48Gbps.
Microsoft's next-gen console supports HDMI 2.1 and will handle VRR in 4K from as low as 30Hz right up to 120Hz - as long as your TV can do the same. Again Xbox Series X will support both FreeSync and HDMI VRR. Things are a little less clear with the PS5. When looking at the ‘Video Out’ portion of the official specs, we notice that it states
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does hdmi 2.0 work with 2.1