Why AMD is known as one of the brand that perform well in 3 monitors setup?

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blastingcap

Diamond Member
Sep 16, 2010
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I started off with a 5850 and Eyefinity on 3x 22" monitors. I am now on a 7970 with 3x 23" monitors and it works ok. But some people caution you about screen tearing because the DP signal may not sync up with the HDMI/DVI outputs. It doesn't bother me too much, but others may disagree.
 

Spike

Diamond Member
Aug 27, 2001
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I started off with a 5850 and Eyefinity on 3x 22" monitors. I am now on a 7970 with 3x 23" monitors and it works ok. But some people caution you about screen tearing because the DP signal may not sync up with the HDMI/DVI outputs. It doesn't bother me too much, but others may disagree.

I noticed this when I first got my 3 x Dell U2412M's though it only occurred on the screen that was using DP. As an experiment I picked up a passive DP to DVI converter and used that to power the third screen, now I don't have any screen tearing. I mean, there is still tearing in games if I don't buffer right or use vsync, but in windows I can drag things around and there is no line anymore.

I have no idea if that was supposed to work or not but it did with both my 6970 and 7970.
 

bystander36

Diamond Member
Apr 1, 2013
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From what I've heard on a Pcper Podcast, AMD cards can't use hardware v-sync in 3 monitor setups. This might be way a lot of Eyefinity setups with mixed connections seem to have troubles with tearing at different locations.
 

Final8ty

Golden Member
Jun 13, 2007
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From what I've heard on a Pcper Podcast, AMD cards can't use hardware v-sync in 3 monitor setups. This might be way a lot of Eyefinity setups with mixed connections seem to have troubles with tearing at different locations.

Even if that were true It would make no difference as v-sync does not compensate for varied interface video input delay on the monitors.

The post above yours shows one solution and he says he is using Vsync and he gets tearing without Vsync which would be expected.

Another thing is making sure the Primary monitor is also number 1 in CCC, not Windows screen options but in CCC or often Vsync will not work even on single screen on a multi monitor setup, i would make sure that is correct before setting up an Eyefinity group.
 
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Keysplayr

Elite Member
Jan 16, 2003
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From what I've heard on a Pcper Podcast, AMD cards can't use hardware v-sync in 3 monitor setups. This might be way a lot of Eyefinity setups with mixed connections seem to have troubles with tearing at different locations.

You should find this podcast and link to it.
 

Spike

Diamond Member
Aug 27, 2001
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You should find this podcast and link to it.

I've been able to use vsync with my eyefinity setup, though it could be what the other poster mentioned about making sure the primary monitor is number 1 in CCC. At least I can see screen tearing when vsync is turned off (in certain games) and it goes away when I turn it on, so I assume it's working.

Now I just need a single video card that can handle all my games in 5760x1200 with max details... someday... ;)
 

Creig

Diamond Member
Oct 9, 1999
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People THINK it's like that, when infact NVIDIA have surpassed AMD in multi-monitoring *shrugs*

it's th same when people compare the GTX680 with the 7970...on current drivers:
http://hardocp.com/article/2013/03/...iver_performance_summary_review/#.UbSROyHU99M

Facts suffer, because people don't correct their stances when facts schange.

Hmmm... Sounds a lot like those people who claim that AMD's current drivers are crap because of opinions formed 10 years ago.
 

bystander36

Diamond Member
Apr 1, 2013
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You should find this podcast and link to it.

I was mistaken, it was techreport's podcast, but these things are 1-2 hours long, so finding exactly where they talked about it is hard. That said, I think it is this one: http://techreport.com/podcast/trpodcast_ep131.mp3

I can't seem to find the specific spot where it is mentioned, but I did do a search on the topic and found a lot of forum threads on the subject of vsync just not working in Eyefinity, or at least not properly. As in it'll limit the FPS, but tearing still occurs.
https://www.google.com/search?q=amd...78,d.cGE&fp=413195408aebdc26&biw=1461&bih=795
 
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PrincessFrosty

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Feb 13, 2008
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Because AMD got there first with a compelling and very streamlined multi-monitor support, Nvidia had to play catch up for a long time.

At this point in time I don't think there's a huge difference, there's some drawbacks to Nvidia surround such as requiring SLI on older generations of hardware, not sure if they've fixed in the new gen?
 

blastingcap

Diamond Member
Sep 16, 2010
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Because AMD got there first with a compelling and very streamlined multi-monitor support, Nvidia had to play catch up for a long time.

At this point in time I don't think there's a huge difference, there's some drawbacks to Nvidia surround such as requiring SLI on older generations of hardware, not sure if they've fixed in the new gen?

Starting with the 6xx series, you can display up to four monitors on a single video card, provided it has enough outputs.
 

Final8ty

Golden Member
Jun 13, 2007
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As in it'll limit the FPS, but tearing still occurs.

That's exactly what i was talking about that make sure The Primary Display is Number 1 or it will limit the FPS but you still get the tearing, a lot of people don't know that.
 
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bystander36

Diamond Member
Apr 1, 2013
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That's exactly what i was talking about that make sure The Primary Display is Number 1 or it will limit the FPS but you still get the tearing, a lot of people don't know that.
What I'm not sure about, is if Nvidia is any different in that regard.