HDMI cables relay both video and audio signals between source media and a Soundbar. Because you need only one cable, HDMI allows you to achieve quality sound and picture without having to use multiple cords to do so. HDMI ARC, in particular, helps you to maintain control over multiple devices from a single remote making your home theater even HDMI 2.0 has a data transfer speed of 18Gbps and strongly supports 4K and 1440p video. Many new devices still use this standard. Most 4K TVs, capture cards, higher-end laptops, and cameras only use HDMI 2.0 since 4K60 is still the standard for most video. Peak video specs for HDMI 2.0 include 1080p240, 1440p144, and 4K60. 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 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. HDMI 2.1 is the latest version of the popular audio-visual interface, and promises a raft of new features and greater performance than preceding versions of the standard. As it turns out, though The DisplayPort vs. HDMI discussion just became a lot more difficult. Before this news dropped, HDMI 2.1 was originally a full-on upgrade over HDMI 2.0b in terms of resolution and raw bandwidth aFSC. 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). 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. HEC is a high-speed two-way data link for video, audio, data and Ethernet communication. ARC allows HDMI connections to send audio information back to the source for playback, e.g., a TV can send audio to an AV receiver to hear on a surround sound speaker system. Type C Mini HDMI connectors also have 19 pins. HDMI 2.0 vs 2.1 – Features. HDMI 2.0 has a bandwidth capacity of 18 Gbps (gigabits per second). HDMI 2.1 takes the number up to 48 Gbps, which means that HDMI 2.1 does not have to compress that much of the data and preserve a better data quality during the transmission process. HDMI 2.0 supports a maximum bandwidth of 18 Gbps, which is enough to handle 4K resolution at up to 60Hz, or 1080p at up to 240Hz. In comparison, DisplayPort 1.4 has a maximum bandwidth of 32.4Gbps, which opens up a much greater resolution and frame rate potential. It supports 4K resolution at up to 120Hz without compression, and 8K resolution DP 1.2 supports eight audio channels, while DP 1.4 supports up to 32 audio channels. DisplayPort 1.4 is backward compatible with DisplayPort 1.2, so devices with DisplayPort 1.2 can still connect to DisplayPort 1.4 devices. DisplayPort 1.4 supports a refresh rate of up to 120Hz, making it ideal for gaming and other fast-paced applications.

difference between hdmi and hdmi 2.1