VGA and HDMI are interface standards used for cables that connect devices — such as laptop computers and DVD players — to a display, like a TV, computer monitor or projector.
VGA is an older standard that carries only a video signal. HDMI is the default cable standard for newer electronic devices, such as Blu-Ray players or LED TVs. HDMI can carry both digital video and audio signals, all while encrypting data with HDCP.
The video quality attained with a VGA cable is noticeably worse when compared to that of HDMI. Even so, HDMI may be phased out soon, as USB 3.1's versatile Type-C connector has the potential to replace the HDMI standard.
Comparison chart:
| HDMI | VGA | |
|---|---|---|
| General Specification | Hot pluggable, external, digital video and audio signal, 19 or 29 pins. | Not hot pluggable, RGB video signal, 15 Pins |
| Stands For | High Definition Multimedia Interface | Video Graphics Array |
| Signal through cables | Digital | Analog |
| Compatibility | Compatible with DVI and VGA with converters. | VGA to DVI and VGA to HDMI converters available. |
| Audio signal | LPCM, Dolby Digital, DTS, DVD-Audio, Super Audio CD, Dolby Digital Plus, Dolby TrueHD, DTS-HD High Resolution Audio, DTS-HD Master Audio, MPCM, DSD, DST | None. Requires separate audio cable. |
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