Performance won't be impacted, but the version of the port dictates the maximum resolution and refresh rate you can display via that port. For example, HDMI 1.4 can only go up to 4K 30Hz (or 1080p & 1440p 60Hz), while HDMI 2.0 can go up to 4K 60Hz (or 1080p/1440p 144/120Hz).
HDMI ARC (High-Definition Multimedia Interface Audio Return Channel) was introduced with the HDMI 1.4 specification in 2009. It was designed to simplify audio connections by eliminating the need for additional cables between the TV and the AV receiver or active speaker system.
From HDMI 1.0 to the latest HDMI 2.1, each version brought with it improvements in audio-visual quality, increased bandwidths, and support for emerging technologies like Dynamic HDR and eARC.
Although a distinctly different technology, HDCP is sometimes confused with HDMI, since HDCP generations include HDCP 1.4 and 2.2, while recent HDMI generations include 1.4, 2.0, and 2.1. They are also often labeled alongside each other on source and display devices. As close as they are, though, these are two very different technologies.
What's the difference between HDMI 2.0 and HDMI 2.1? HDMI began with Category 1, which carried up to 1080i or 720p video before HDMI 2.0 (Category 2) arrived, able to carry more than double bandwidth and allow for 1080p video all the way up to 4K. Category 3, also known as HDMI 2.1, allows for higher frame rates when playing on compatible TVs.
Unfortunately, the answer is yes, and no. HDMI 2.1 does have a new cable called Ultra High Speed HDMI. It can transmit data at 48 Gbps, 2.6x faster than current HDMI cables. Current HDMI 2.0 resolution and refresh rate capabilities cap out at 4K/60 fps or 8K/30 fps, while 2.1 can carry all the way up to 10K/120 fps.
Cable Length. HDMI cables offer a much longer maximum cable length than DisplayPort, and can go up to 100 feet for 1080p signals or 30 feet for 4K signals, making them the preferred choice for longer cable runs. DisplayPort cables can go up to 10 feet in length, and longer cable runs may impact the resolution quality and refresh rates.
HDMI started in 2004. It quickly took over as a single cable solution and on all TVs. All you need to know is that it has versions 1.0, 1.1, 1.2, 1.3a, 1.4, 1.4a, 1.4b, 2.0, 2.0a, 2.0b and now 2.1. HDMI devices and cables are backwards compatible to the extent that earlier versions simply do not support latter features.
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.
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difference between hdmi and hdmi 2.1
