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DVI vs DVI-D video output port

Last response: in Graphics & Displays
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November 12, 2012 5:43:09 PM

Hi,
I've ordered an Acer GD235HZbid with the intent of doing single monitor, NON-3d gaming at 120mhz.

I've notice that some video cards specifically call out having:
2 x DVI (1 Single Link, 1 Dual Link)
While other cards, sometimes, even ones much more expensive, sometimes make no mention of DVI-D at all.
I.E.
SAPPHIRE 100352-2L
vs
SAPPHIRE Vapor-X 100352VXSR

(in this example the more expensive card has it but the price isn't my main question)

I've read that a DVI-D cable is necessary for 120hz and I know one comes with the monitor I ordered.
Is it necessary to have a DVI-D port on the video card or are some of these DVI-D ports just listed as simply DVI?
November 12, 2012 6:55:45 PM

rolli59 said:
Dual link DVI is necessary for 120Hz
DVI-I carries analog signal with digital
DVI-D is only digital signal.
http://en.wikipedia.org/wiki/Digital_Visual_Interface
That link will explain a lot.



Ah ok, so if I want to run this monitor at 120hz I'll have to buy the SAPPHIRE Vapor-X 100352VXSR card, the other won't work?
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a c 1369 U Graphics card
a c 101 C Monitor
November 12, 2012 7:00:50 PM

The connector looks to be a dual link DVI and here they state that http://www.sapphiretech.com/presentation/product/?cid=1...
Display port works as well for 120Hz. (mini or std)
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November 12, 2012 8:27:19 PM

rolli59 said:
The connector looks to be a dual link DVI and here they state that http://www.sapphiretech.com/presentation/product/?cid=1...
Display port works as well for 120Hz. (mini or std)



Thank you very much for the help.. makes a lot more sense now. Good to new the lesser expensive card would work.
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November 12, 2012 8:27:56 PM

Best answer selected by ibjeepr.
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