Hardware

DVI vs. HDMI vs. DisplayPort Video Connections

In order to display the output from your computer to your screen, you need to connect 2 type of cable because wireless displays are not very popular yet and they are still working. When it comes to connection types and cables, they are not all alike in terms of picture quality. But if your computer only has a particular type, then you’re stuck with whatever technology is in place unless you want to change your video card for something with a newer connection.

For a long time, VGA (Video Graphics Array) was your only choice for video and it has been around since 1987 so that tells you how much worth updating! Although VGA is an old standard, it is still widely used today and some new computers and monitors still have VGA ports even though you are seeing it less and less now.

After VGA began to show its age, another type of video cable called DVI (Digital Visual Interface) was introduced in 1999 and introduced a digital signal instead of the analog signal that VGA used. Shortly after that in 2002, version 1 of the HDMI (High Definition Multimedia Interface) standard was released. Shortly after that, in 2006, the first version of the DisplayPort interface was launched. Now that we have all the dates in order, let’s talk about each type of connection.

DVI

DVI was developed by the Digital Display Working Group and uses uncompressed digital video unless you are using DVI-A which uses an analog signal. The other types are DVI-D (digital) and DVI-I (digital and analog). The digital versions of DVI come in either a double-link or a single-link and you can tell the difference by the number of pins on the connector with a double-link having more. Single-link DVI supports up to 1920 x 1200 resolution and dual-link supports up to 2560 x 1600 resolution. DVI is compatible with VGA and HDMI and you can get a cable that converts the connection from one type to another. DVI is mostly used for computer video connections but some TVs have DVI ports as well and you can actually connect your computer to your TV to use as a display.

HDMI

HDMI also transmits uncompressed digital video like DVI but it can also transmit audio signals. There have been several updates to the HDMI standard over the years to improve its performance and capabilities. There are 5 types of HDMI connectors labeled from Type A to Type E with new features and capabilities added to each. An HDMI cable consists of four shielded twisted pairs of wires. These cables can also be used with LED and LCD TVs and can transmit a 1080p signal to the TV using newer cables that support 4K and up to 10k TVs. Current support for HDMI resolution on your computer is 2560 x 1600. The latest high speed HDMI cable supports up to 48Gbps in bandwidth.

DisplayPort

The latest type of cable is designed to connect devices specifically to displays such as computer monitors. DisplayPort is compatible with HDMI and DVI and you can get crossover cables just like other types of video. Just like HDMI, DisplayPort can carry audio signals but can also transfer USB data. If you like high resolution, what does 5120 x 2880 60Hz sound like? Not many computers or televisions are available with DisplayPort connections at the moment, but since it appears to offer better performance than HDMI, we think it will eventually start to gain popularity.

When choosing your next computer or TV, you should see what types of connection they offer and then take that into account in your decision about which model to choose. For the most part, it’ll handle either HDMI or DisplayPort and either one will be fine for the average user who probably won’t notice the difference.

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