For 2560 X 1440, any difference between dual link DVI and displayport cables?

[nine9s]

I have Dell U2713HM 1440 monitor, and a GTX 970.

Currently (and all of I have used with the monitor), I am using the dual-link DVI cable provided by Dell.

I do not have displayport cable, and I am wondering if it offers anything I might be missing with the dual-link DVI. When I search the internet, all I find are HDMI vs displayport articles - dual-link DVI is mostly ignored.

Are there any reasons to buy a displayport cable to use over a DVI dual link cable for my set-up?

Thanks for any help.

 

[OlyAR15]

As long as it supports the native resolution and max refresh rate of the monitor, I wouldn't worry about it. They are all digital connections. Only reason I would buy a displayport cable is if there were no more free DVI ports.

 

[Black Octagon]

If you have DL-DVI and it works, stick with it. DP can be buggy for some people but DVI is pretty much rock solid. Just big and ugly, lol

 

[night.fox]

difference is that dp has audio signal whereas dvi dual doesnt have. max res support of dvi is 1600p @ 60 hz whereas dp can support 4k or can support multiple monitors via multi link adapter.


like other mentioned, stick to it if you dont have dp cable. only waste of money.

 

[KingFatty]

I found a weird quirk with my 2560x1440 monitor when I use the dual-link DVI cable - I can't support triple-screens (putting one or both of the secondary 1920x1200 monitors on active single-link displayport to DVI adapters or HDMI).

It's very strange, but if I connect my 2560x1440 via native displayport, then my computer is happy to support triple screen using the two secondary 1920x1200 monitors (whether I connecting them using DVI, a displayport-DVI adapter, or HDMI).

So if you ever try to run triple-screens in the future (e.g., by putting one of the secondary monitors on a displayport-DVI adapter and leaving the big 2560x1440 on the DL-DVI port) and you can't seem to get it to work, try switching the 2560x1440 to a displayport cable.

It would be great if anyone else could verify this, but maybe it's just a bug in the drivers I'm using (crossfire 7950s where each card has one DL-DVI port, one HDMI, and two mini-displayports, running 14.9 betas).

 

[Black Octagon]

For Eyefinity, at least one screen needs to be connected by DP. Or at least that's how it used to be.

 

[dorion]

I found a weird quirk with my 2560x1440 monitor when I use the dual-link DVI cable - I can't support triple-screens (putting one or both of the secondary 1920x1200 monitors on active single-link displayport to DVI adapters or HDMI).

It's very strange, but if I connect my 2560x1440 via native displayport, then my computer is happy to support triple screen using the two secondary 1920x1200 monitors (whether I connecting them using DVI, a displayport-DVI adapter, or HDMI).

So if you ever try to run triple-screens in the future (e.g., by putting one of the secondary monitors on a displayport-DVI adapter and leaving the big 2560x1440 on the DL-DVI port) and you can't seem to get it to work, try switching the 2560x1440 to a displayport cable.

It would be great if anyone else could verify this, but maybe it's just a bug in the drivers I'm using (crossfire 7950s where each card has one DL-DVI port, one HDMI, and two mini-displayports, running 14.9 betas).

That could just be a limitation with your videocards, many AMD cards have a DVI and a HDMI port sharing the same signal generation hardware. My HD5850 couldn't run three screens if I was using DVI/DVI/HDMI, but DVI/DVI/DP(and probably DVI/HDMI/DP) worked once I got my DELL 2713.

 

[nine9s]

difference is that dp has audio signal whereas dvi dual doesnt have. max res support of dvi is 1600p @ 60 hz whereas dp can support 4k or can support multiple monitors via multi link adapter.


like other mentioned, stick to it if you dont have dp cable. only waste of money.

Would Nvidia's DSR higher than 1600 be a problem? Or is it not really at that resolution so does not matter as far as cable capability?