HDMI , DisplayPort, and DVI are three interfaces that can handle digital video. They are found in various types of devices, more or less frequently. It is convenient to know the capabilities of these three connection standards to know which one to use in each case, especially when it comes to watching videos and movies from a computer. Currently, HDMI (High-Definition Multimedia Interface) is the most widely used; it can transmit audio and video at the same time. It is present in all modern televisions and in the vast majority of computer monitors . ComputersLaptops and desktops usually include an HDMI output, like many smartphones on the market, although in the latter, the connector is usually mini.
Nowadays, the usual thing is that the equipment has an HDMI 1.4 , compatible with 3D content. However, HDMI 2.0 is the most modern version, capable of handling 4K video in Ultra High Definition (3,820 by 2,160 pixels up to 60 fps or frames per second) and a maximum of 32 channels of audio. To get the most out of 4K video signals, you need to use a high speed HDMI cable .
DisplayPort is a standard designed in 2006 for connecting computers to monitors. You can stream audio and video simultaneously, or separately. The maximum resolution is limited by the available bandwidth. Version 1.2 has an effective bandwidth of 17.28 gbps (gigabits per second); it can work with a resolution of 3,840 by 2,160 pixels at 60 fps ( 4K video ). One of its main virtues is the multi-monitor capacity , something very useful for programmers, graphic designers or video editors. Nor does it hurt to consult material or browse the web on one screen and write on another. Ideally, the cable should not be longer than three meters, especially if it is passive.
DVI (Digital Visual Interface) is the oldest interface; the standard dates from 1999. It was designed to distribute uncompressed digital video, although it can adopt three modes: DVI-D (digital only), DVI-A (analog only), and DVI-I (digital and analog). The main difference from HDMI is that DVI only carries video, while HDMI also carries audio. This is why you need a second connection to output the audio, or else use an adapter, for example DVI to HDMI. DVIit is still very popular in non-multimedia computer monitors (lacking built-in speakers), and also in older projectors. The DVI standard supports two resolutions, depending on whether you use a single link or a dual link. DVI with a single link offers a WUXGA resolution of 1920 by 1200 pixels at 60 Hz ; the dual DVI works with 2560 by 1600 pixels at 60 Hz. The connectors for one or double bond they are different; those that are for dual are usually marked as DVI-DL (for Dual Link). You can only send the signal to a single monitor.
In short, HDMI is the most popular alternative for monitors and televisions currently on the market, so it may be the optimal one for many users. For its part, DisplayPort is the best option for intensive users who need to work with several monitors simultaneously. Those who have an old monitor will surely have to settle for the DVI connection to be able to view the videos from the computer, and they will not be able to enjoy 4K movies.