Editing Graphics card (section)

=== RAMDAC ===
The [[RAMDAC]], or random-access-memory digital-to-analog converter, converts [[digital signal (signal processing)|digital signal]]s to [[analog signal]]s for use by a computer display that uses analog inputs such as [[cathode-ray tube]] (CRT) displays. The RAMDAC is a kind of RAM chip that regulates the functioning of the graphics card. Depending on the number of [[bit]]s used and the RAMDAC-data-transfer rate, the converter will be able to support different computer-display refresh rates. With CRT displays, it is best to work over 75&nbsp;[[Hertz|Hz]] and never under 60&nbsp;Hz, to minimize flicker.<ref>{{cite web
 |url          = http://www.worldstart.com/tips/tips.php/1146
 |title        = Refresh rate recommended
 |access-date  = 2007-02-17
 |archive-url  = https://web.archive.org/web/20070102032211/http://www.worldstart.com/tips/tips.php/1146
 |archive-date = 2007-01-02
 |url-status     = dead
}}</ref> (This is not a problem with LCD displays, as they have little to no flicker.{{citation needed|date=December 2012}}) Due to the growing popularity of digital computer displays and the integration of the RAMDAC onto the GPU die, it has mostly disappeared as a discrete component. All current LCD/plasma monitors and TVs and projectors with only digital connections work in the digital domain and do not require a RAMDAC for those connections. There are displays that feature analog inputs ([[Video Graphics Array|VGA]], component, [[SCART]], etc.) ''only''. These require a RAMDAC, but they reconvert the analog signal back to digital before they can display it, with the unavoidable loss of quality stemming from this digital-to-analog-to-digital conversion.{{citation needed|date=January 2019}} With the VGA standard being phased out in favor of digital formats, RAMDACs have started to disappear from graphics cards.{{citation needed|date=January 2017}}
[[File:HIS Radeon HD 5850 ports.jpg|thumb|A [[Radeon HD 5000 series#Desktop products|Radeon HD 5850]] with {{nowrap|a DisplayPort, HDMI and two DVI ports}}]]