why do graphic cards have different types of ports instead of having the same type of port

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jcheera

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Nov 16, 2014
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I always wondered why graphic cards have only one hdmi and others are dvi or vga , why cant they all have hdmi on it ?
 
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Tom Tancredi


If you look on other monitors you will see they do all NOT have HDMI. Some need DVI for 120HZ signals, some are cheap so they only have VGA connection on them, and so on. You can see the history of video connections via Wikipedia.org or on the IEEE.org websites. VGA is the oldest of the current connections, while HDMI is the newest, but they are NOT the same thing. Each iteration of connection carries specific signals and bandwidth of data, in the case of HDMI 1.3 it can pass both sound and video on the same single connection, while DVI-D can support higher HZ frequency (like 120Hz, 240Hz or 4K screens). Each...
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risaccess1

risaccess1

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Jul 29, 2012
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The type and number of ports that are on graphics cards are different because it is up to the card manufacturer what ports they deem necessary depending on the target consumer of the card.

For example, a high end workstation quadro card usually has a large number of some variation of Display Port or DVI. This is because the manufacturer expects that the person buying the card intends to use it with several high end monitors or other display devices, which require a digital, HD connection with a high bitrate.

On the other end of the spectrum, a geforce gtx or a radeon HD would likely have a mixture of either DVI, HDMI, or VGA. This is because they expect the card is being bought by a more average consumer, and they want to ensure that it can connect to a wider variety of different display devices like HD TVs, LCD monitors, CRTs, etc.

 
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modernwar99

modernwar99

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Jul 9, 2014
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For support on different monitors/TVs. Almost every new GPU has at least one HDMI port on it. I still use VGA for both of my monitors and it looks the same as HDMI. I can't mix VGA and HDMI because eyefinity refuses to work with those two combined.
 
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Tom Tancredi

Tom Tancredi

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May 9, 2013
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If you look on other monitors you will see they do all NOT have HDMI. Some need DVI for 120HZ signals, some are cheap so they only have VGA connection on them, and so on. You can see the history of video connections via Wikipedia.org or on the IEEE.org websites. VGA is the oldest of the current connections, while HDMI is the newest, but they are NOT the same thing. Each iteration of connection carries specific signals and bandwidth of data, in the case of HDMI 1.3 it can pass both sound and video on the same single connection, while DVI-D can support higher HZ frequency (like 120Hz, 240Hz or 4K screens). Each connection thus is used for the 'need' of the card and monitor associated to it.

Just like why are there Ford 3500 trucks and Honda Civics, why doesn't everyone just drive a Toyota Electric vehicles? Same sort of question, because the type it is needs to support the use of it, in the case of 3500 you can haul and tow heavy loads and offroad where as you can't with Civics and Toyota, and you need electric charge stations every short distance as compared to a Civic which can find gas stations coast to coast over very long distances. Proper Tool for the Proper Job.
 
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