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What's the difference in performance between DVI and HDMI?

#1TheBorderColliePosted 5/3/2014 10:24:12 AM
I'm going to be running my audio separately to a sound system.

Is there any difference in graphical capabilities and quality between DVI and HDMI? This new monitor I have coming includes an HDMI to DVI cable and I'm wondering if that will be sufficient or if I need to buy a new HDMI cable. Thanks!
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#2romsnbombsPosted 5/3/2014 10:25:16 AM
No difference in quality. Just bandwidth. As long as it's 60hz, you're fine with HDMI. If it's 120hz, you need DVI or displayport
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#3reincarnator07Posted 5/3/2014 10:26:53 AM
It's a digital signal, so image quality will be identical (Displayport would be the same in this regard). The main difference is that HDMI carries sound, but that doesn't matter for your setup. What resolution are you planning to run? Dual Link DVI has more bandwidth for higher resolutions.
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#4TheBorderCollie(Topic Creator)Posted 5/3/2014 10:27:15 AM
romsnbombs posted...
No difference in quality. Just bandwidth. As long as it's 60hz, you're fine with HDMI. If it's 120hz, you need DVI or displayport


Hmm...So based on what you are saying, DVI is actually better?...Because it covers you either way (60hz or 120hz)?
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#5romsnbombsPosted 5/3/2014 10:30:19 AM
TheBorderCollie posted...
romsnbombs posted...
No difference in quality. Just bandwidth. As long as it's 60hz, you're fine with HDMI. If it's 120hz, you need DVI or displayport


Hmm...So based on what you are saying, DVI is actually better?...Because it covers you either way (60hz or 120hz)?


It honestly doesn't matter, if you don't have a 120hz monitor. And really I was talking about dvi dual link. If it's a regular single link dvi, that might only carry same bandwidth as HDMI.
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#6LordSeiferPosted 5/3/2014 10:33:15 AM
no difference
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#7kingoffpsPosted 5/3/2014 10:40:38 AM
romsnbombs posted...
TheBorderCollie posted...
romsnbombs posted...
No difference in quality. Just bandwidth. As long as it's 60hz, you're fine with HDMI. If it's 120hz, you need DVI or displayport


Hmm...So based on what you are saying, DVI is actually better?...Because it covers you either way (60hz or 120hz)?


It honestly doesn't matter, if you don't have a 120hz monitor. And really I was talking about dvi dual link. If it's a regular single link dvi, that might only carry same bandwidth as HDMI.


Yeah I think this is right. Also, when I had a 1440p 60hz monitor, I needed dual-link DVI for that. But 1080p and 60hz will not need more than single DVI.

My friend said years ago that DVI and HDMI were exactly the same except for the physical shape of the connector (which is why adapters are so cheap), but this might be nonsense.
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#8SinisterSlayPosted 5/3/2014 10:48:38 AM
Far as I know, HDMI just has less bandwidth.

As for the adaptors, your video card can control what pins do what. It can switch to an HDMI configuration.

Also. although not applicable anymore, you can overhang your video cards, put larger cards into smaller slots and it actually works (like a pci 16 into a pci 1). It just slows them down. The technology in video cards is really impressive.
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#9jakeDiLLaPosted 5/3/2014 10:53:02 AM
In my experience I've been able to get 144 hz out of DVI, and about 80hz from HDMI but I think if you use HDMI 2.0 you can get higher refresh rates.
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#10AlleRacingPosted 5/3/2014 12:29:33 PM
Unless the devices use HDMI 2.0 (which is unlikely), dual-link DVI has greater bandwidth and can support resolutions higher than 1080p at 60Hz as well as higher refresh rates at those resolutions. Also, DVI can carry an audio signal, it's just that extremely few devices support audio over DVI.
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