Another clear difference is that HDMI is both a video and audio interface whereas VGA only offers video. As a result, if you ever want to connect a device that uses VGA to one which uses HDMI you will need to purchase a converter. Now looking at the two connectors physically, they both look very different. A VGA has a three-row 15-pin connector While both support 8K or 4K 144 Hz resolution, a larger bandwidth allows DP to transmit more data. As DisplayPort has a large bandwidth and high refresh rate, it provides exceptional video visuals over HDMI. Despite that HDMI 2.0 has updated its refresh rate in the latest versions, the refresh rate of DP 1.4 is still a great feature. The main difference between HDMI ARC vs eARC comes down to bandwidth. Since HDMI 2.1 has a higher bandwidth than HDMI 1.4, it can transfer more data faster. That means the audio signal doesn’t have to be compressed as much, and you’ll get better audio quality with eARC. You can think of bandwidth like a pipe that can only transport a 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. 1.2 - 1.2a: The most widely used version of the DisplayPort, version 1.2, was released in 2010. With a bandwidth of 17.28 Gbps , it is a huge improvement over the previous version. The higher bandwidth allows users to transmit 1080p video at 240 Hz and 4k at 75 Hz .
3. The difference between HDMI 2.1 and HDMI 2.0. The latest HDMI 2.1 standard is leaps ahead of HDMI 2.0. The first big difference that comes to mind is support for higher video resolution. HDMI 2
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    • difference between hdmi and hdmi 2.1