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what is Dual-Link DVI Supported mean?  

post #1 of 9
4/2/09 at 9:10pm
Thread Starter 
my graphics card says Dual-Link DVI Supported what does that mean?
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post #2 of 9
4/2/09 at 9:11pm
The dual link DVI pins effectively double the power of transmission and provide an increase of speed and signal quality; i.e. a DVI single link 60-Hz LCD can display a resolution of 1920 x 1200, while a DVI dual link can display a resolution of 2560 x 1600.
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post #3 of 9
4/2/09 at 9:12pm
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as far as I know dual-link is a DVI connection with additional pins that allow it to run at higher resolutions than normal (like 2560x1600).
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post #4 of 9
4/2/09 at 9:14pm
Thread Starter 
so is it a y cable that goes to both sockets at one monitor?
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post #5 of 9
4/2/09 at 9:15pm
Yes it is, your monitor also has to support it($$$)
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post #6 of 9
7/2/12 at 11:22am
Quote From---- http://fireuser.com/blog/what_does_dual_link_dvi_actually_mean/ Posted by Tony DeYoung on July 10, 2008
This seems to explain it quite well.

What does dual-link DVI actually mean?


Dual Link DVI

As I’ve been searching around for information on the rate of adoption of DisplayPort (for an upcoming post), I’ve come across a lot of confusion on message boards where people think “dual link” DVI means using both of the DVI ports on your FireGL graphics card to drive one or two monitors. The name dual link, while technically accurate, is a misnomer for many consumers.

So what does dual link actually mean? “Dual Link” DVI use two TMDS digital signal transmitters and 8 wires to send data, while “single link” uses one TMDS digital signal transmitter and 4 wires. The Dual link DVI effectively doubles the power of transmission and provides an increase of refresh rates and signal quality. Specifically a DVI single link 60-Hz LCD can display a resolution of 1920 x 1200, while a DVI dual link 60-Hz LCD can display a resolution of 2560 x 1600.

If you look at the plug-ends of a single “dual link” cable, you see it actually has more pins packed in than standard single link DVI cables (18 vs 24 pins). In this case, more pins and wires in the cable translates to more bandwidth. Where this becomes slightly confusing is that on most of the current FireGL accelerators you will see two Dual Link DVI outputs. This means you can drive two high resolutions monitors, each up to 2560 x 1600.
post #7 of 9
7/2/12 at 11:25am
This is from 2009...
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post #8 of 9
7/2/12 at 11:28am
Why so much ignorance in this thread? A dual-link DVI cable just has more pins than a single link DVI cable does, allowing more data transfer. It is SINGLE CABLE, not a y-connection or anything. This allows 1920x1080 displays to refresh at 120hz and also allows resolutions as high as 2560x1600 @ 60hz and 3840x2400 @ 33hz

Edit: oh lol this is a bumped thread. People, y u cause zombie thread apocalypse?
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post #9 of 9
7/2/12 at 12:26pm
I'm putting an end to the zombie (thread) apocalypse wink.gif
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Overclock.net › Forums › Graphics Cards › AMD/ATI › what is Dual-Link DVI Supported mean?