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7970 EyeFinity? - Page 2

post #11 of 21
Quote:
Originally Posted by spiritmn77 View Post

I have FOUR 30" MONITORS RUNNING 2560x1600.
HDMI on the 6870 can only run 1920X1200 (which is why I'm thinking about the 7970). I have 2 U3011's (and two older dell 30" DVI-D's) and am wondering if the new HDMI standard will work with just a HDMI cord now...no special features needed on the montior? I have the active usb powered adaptors for the MiniDP to DVI-D...I just need to know about the HDMI.
Thanks!


All the monitors above have no HDMI support for 2560x1600. Using HDMI-DVI-D will not support the monitors native resolution, max will be 1920x1200. The 7970 HDMI will support native HDMI 4096x3112 but such monitor still doesn't exist yet. Or thru MST still not available too.

 

I undersatnd your concerns and why you are asking this, but I don't believe you need to set Eyefinity group with 4 monitors with the reference 7970. With 4 monitors group into SLR will be unplayabe.

 

If you really need Eyefinity 4, wait for Sapphire 7970 6GB Eyefinity 6. You do not need MiniDP-DVI-D Dual Link Active Adapter as all your monitors have native DisplayPort. All you need is MiniDP-DP adapter cables. 
 

 

 

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post #12 of 21
Quick question. I plan to run Eyefinity at some point, and I am planning on using 3 120Hz monitors. Because HDMI doesn't output 120Hz, what do I do? There are 2 mini-Display Ports on a 7970, but the monitors don't have Display Port on them, just HDMI and DVI-D. Will using a Display Port->DVI-D adapter still output a 120Hz signal? I just want to be able to run Eyefinity with 3 120Hz monitors.


Sorry for what seems like a simple question, but I'm actually having a hard time confirming this.
post #13 of 21
That's what I figured...dang.
post #14 of 21



 

Quote:
Originally Posted by vikingsteve View Post

Quick question. I plan to run Eyefinity at some point, and I am planning on using 3 120Hz monitors. Because HDMI doesn't output 120Hz, what do I do? There are 2 mini-Display Ports on a 7970, but the monitors don't have Display Port on them, just HDMI and DVI-D. Will using a Display Port->DVI-D adapter still output a 120Hz signal? I just want to be able to run Eyefinity with 3 120Hz monitors.
Sorry for what seems like a simple question, but I'm actually having a hard time confirming this.


If you mean something like this adapter  Accell UltraAV B087B-002B DisplayPort/DVI-D Dual-Link Adapter ...

 

No, it doesn't support 120Hz. There's no such adapter available for 120Hz. The 120Hz monitors must have native DisplayPort.


Edited by Ken1649 - 1/28/12 at 2:30pm
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post #15 of 21
Quote:
Originally Posted by Ken1649 View Post




 


If you mean something like this adapter  Accell UltraAV B087B-002B DisplayPort/DVI-D Dual-Link Adapter ...

No, it doesn't support 120Hz. There's no such adapter available for 120Hz. The 120Hz monitors must have native DisplayPort.

So what you're saying is that if the monitor doesn't have a Display Port on it, I'm screwed.


Ugh, I hate this market. Why do they even make 120Hz monitors if none of them come with Display Port? rolleyes.gif
post #16 of 21
Quote:
Originally Posted by vikingsteve View Post


So what you're saying is that if the monitor doesn't have a Display Port on it, I'm screwed.
Ugh, I hate this market. Why do they even make 120Hz monitors if none of them come with Display Port? rolleyes.gif


 

I am helping you to answer your question about the compatibility with 7970.
 

 

 

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post #17 of 21
Quote:
Originally Posted by Ken1649 View Post



 
I am helping you to answer your question about the compatibility with 7970.

 


Right. What you're saying is that unless I have Display Port to work with on the monitor, I can't use a 7970 to power 3 120Hz monitors in Eyefinity. Correct? You said they must have native Display Port, and the ones I was looking at don't. They just had HDMI and DVI-D.
post #18 of 21
Quote:
Originally Posted by vikingsteve View Post


Right. What you're saying is that unless I have Display Port to work with on the monitor, I can't use a 7970 to power 3 120Hz monitors in Eyefinity. Correct? You said they must have native Display Port, and the ones I was looking at don't. They just had HDMI and DVI-D.


You can power 3 120Hz monitors but do not expect 120Hz 3D Eyefinity support. The best is 60Hz.
 

 

 

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post #19 of 21
Quote:
Originally Posted by vikingsteve View Post


Right. What you're saying is that unless I have Display Port to work with on the monitor, I can't use a 7970 to power 3 120Hz monitors in Eyefinity. Correct? You said they must have native Display Port, and the ones I was looking at don't. They just had HDMI and DVI-D.


You can use the Blizlink Display Port to Dual Link DVI-D adapter to transmit 1920x1200 (120Hz) signal.  It does not come cheap (US$99) for its bandwidth capability.  And, of course, you will need a mini DP-to-DP adapter cable as well.

 

Link: http://store.nvidia.com/DRHM/store?Action=DisplayProductDetailsPage&SiteID=nvidia&Locale=en_US&Env=BASE&productID=227587600&resid=TySD7woHAtYAAAVaJeUAAAAs&rests=1327793134366

 

So, it will be like:-

7970's Dual Link DVI output --> Dual Link DVI cable --> monitor #1's Dual Link DVI input

7970's mini DP output --> mini DP to DP adapter --> Blizlink cable --> Dual Link DVI cable -->monitor #2's Dual Link DVI input

7970's mini DP output --> mini DP to DP adapter --> Blizlink cable --> Dual Link DVI cable -->monitor #3's Dual Link DVI input

 

And, read this thread of the similar topic.  It contains some useful information.

http://widescreengamingforum.com/forum/forums/multi-monitor-gaming/amd-eyefinity-discussions/12409/displayport-dvi-120hz

 

Lastly, for 3D 120Hz technology, Nvidia seems to be leading AMD and so perhaps another alternative is to use Nvidia cards (vs HD7970) to do 3D Surround.  And the above Blizlink adapter was tested by Nvidia to work.

 

 

 


Edited by windfire - 1/28/12 at 3:55pm
post #20 of 21
Thanks. I might have to go with Nvidia then... time will tell.
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