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GPU setup for Eyefinity

post #1 of 13
Thread Starter 
Lately I had to make the choice wheter to get a 6950 CF or 570 SLI setup.
Considering the price/value ratio and superior VRAM I decided to get 2x MSI Twin Frozr III 6950 in CF.

Monitorwise I have two options.
1.)Acer G245H 24" 1920x1080 max res gloss monitor

2.)42" Sony Bravia 1920x1080 max res TV screen


After doing some thinking I decided it would be better , cheaper and less performance hungry if I just went for 3x 24" Acer G245H Eyefinity

So getting two more of those monitors won´t too hard and should let me off a little cheaper than a Sony Bravia Eyefinity setup..not to mention that I would need Quad 6950 for that ^^

So the idea is 3x 24" Eyefinity
I think 2x Twin Frozr III 6950 with 1 GHZ core and 1500 Mem should provide me with 60 FPS at high settings in recent games like for example Crysis Warhead,Batman Arkhym Asylum etc

Looking at the Vantage, 3D Mark 11 etc restuls that card setup has quite some power but I am not sure if it will be enough for Eyefinity and still maintain a good amount of FPS.

AA,AF won´t be needed at Eyefinity resolution ....also will the 2 GB VRAM be quite occupied as it is^^.

So I am not sure ...maybe there is a gpu setup not too much more expensive but better suited for such a project?

6970 CF is out of the question because the performance gain over 6950 CF unlocked is too marginal.

570 SLI also out of question because the VRAM will be insufficient at such resolution ...and not to mention 570 SLI is not capable of running 3 monitors *Edit: because of bad scaling & lack of sufficient VRAM

Then I thought what if I went Tri SLI with a lower range card?
Shouldn´t exceed the price of a 6950 CF setup by too much and deliver the extra performance?

Hope you can share some of your oppinions
Edited by Kung Pow - 4/15/11 at 1:01pm
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post #2 of 13
Sorry but, where did you find out that SLi GTX570's isn't capable of running 3 monitors? It's perfectly capable of running 3 monitors but it has other issues, for example disabling SLi when you alt-tab out of games.

I would still however go with the 6950 setup

Quote:
So getting two more of those monitors won´t too hard and should let me off a little cheaper than a Sony Bravia Eyefinity setup..not to mention that I would need Quad 6950 for that ^^
Screen size is irrelevant as long as they are still running a 1920x1080 resolution

The 6950 is going to be your best bang for buck also (and regretfully I have to admit since i'm going with an SLi triple screen setup) better running a triple screen setup. Also they have the advantage of actually running 3 screens on a single card though maybe not with the best FPS. Also you can add another 6950 later on.

C
post #3 of 13
Thread Starter 
Quote:
Originally Posted by compuman145 View Post
Sorry but, where did you find out that SLi GTX570's isn't capable of running 3 monitors? It's perfectly capable of running 3 monitors but it has other issues, for example disabling SLi when you alt-tab out of games.

I would still however go with the 6950 setup



Screen size is irrelevant as long as they are still running a 1920x1080 resolution

The 6950 is going to be your best bang for buck also (and regretfully I have to admit since i'm going with an SLi triple screen setup) better running a triple screen setup. Also they have the advantage of actually running 3 screens on a single card though maybe not with the best FPS. Also you can add another 6950 later on.

C
Sry if you misunderstood I did not mean 570 SLI can´t run 3 screens physically I was refering to the inferior scaling and due to a 570´s inability of running more monitors than 1 on it the signal transferal rate is worse compared to AMD as you already mentioned.
Also because of the insufficient amount of VRAM for such a setup or resolution.
570 SLI on the other hand is phsically capable of running 3 screens ...but scaling is not very good as it is ...3 screens would only worsen that factor dramatically.

Yeah 6950 CF seems the most appealing right now.
Hmm...but I am still looking for lower range AMD cards that can be Tri CF´ed
Edited by Kung Pow - 4/15/11 at 1:03pm
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post #4 of 13
I wouldn't bother with lower end cards as you're limiting your upgrade path.
post #5 of 13
Thread Starter 
Quote:
Originally Posted by compuman145 View Post
I wouldn't bother with lower end cards as you're limiting your upgrade path.
Wow I will have to tell the whole story now^^


I had GTX 295 Quad.
I sold them for 720$.
I now have that budget for a gpu upgrade.
But really that does not matter as I am saving up for Kepler anyway.
So the budget should not be exceeded too much considering my new gpu update now because as soon as Kepler arrives it will be disposed of for certain

So upgrade path does not really matter only resell value ...so I will be able to sell the cards for a good price too when Kepler is released

6950 CF would be the best bang for the buck, would deliver 2 GB RAM, great overclockability and voltage controlling due to Twin Frozr III and great scaling not to mention great power consumption and therefor heat dissipation.


6970 CF is unfitting since the performance difference compared to a 6950 CF unlocked setup is too slight.

570 SLI as mentioned has too little VRAM for my project , does not scale good in a one monitor config as it is 3x Monitor would lead to a devistating scaling result, also the monitor transferal signal has to be shared on 570´s which also results in less FPS ergo performance drop and lastly the overclock ability and power consumption isn´t so gloomy.

560 SLI would be the best option financially but again it faces the 570 SLI problems to the double

6870 Tri CF would be nice ...but I checked my GA EXUD5 only has 2x 16x PCIE ....which means 1 card would have to run of a 8 x PCI slot and that would result in a performance throttle

I am not sure but so far 6950 seems like the way to go...if someone would like to arguement to the contrary please do so
Otherwise /thread^^
Edited by Kung Pow - 4/15/11 at 1:22pm
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post #6 of 13
You need to remember that the architecture between the AMD and NVidia cards are completely different. Therefore you can't judge a card by the amount of VRAM it has.

http://www.anandtech.com/bench/Product/299?vs=307
post #7 of 13
Stick with the 6950 2gb crossfire setup. For an Eyefinity setup the extra vram does make a difference even more so once you start cranking up all the eye candy and AA.
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post #8 of 13
Thread Starter 
Quote:
Originally Posted by compuman145 View Post
You need to remember that the architecture between the AMD and NVidia cards are completely different. Therefore you can't judge a card by the amount of VRAM it has.

http://www.anandtech.com/bench/Product/299?vs=307
True, but I am not judging the cards I am judging the performance a inferior amount of VRAM could provide compared to a far superior one.
And actually it is not only the amount that plays a dominating factor also the quality and timings.


Of course if the VRAM is fully occupied tha normal RAM comes to aid.
Which is exactly what will happen if you run a 3x Monitor setup with 570 SLI and play very graphic intensive games at max settings such as Crysis.
The VRAM will be full and the RAM will be used for the residualing needs.
The only problem with that is there is a difference between DDR5 GPU VRAM and DDR3 Desktop RAM.

That is why a 6950 CF would be at least better suited for a 3x Monitor setup.
Because even at high settings and a mad resolution such as Eyefinity claims...the VRAM will most possibly not be fully occupied.

But not only at high resolution does the VRAM matter ...also with high graphical settings such as AA,AF,shadows,multi sampling , Vsynch etc etc which are all very VRAM intensive options a superior amount comes to hand.

Also does scaling play a big role with SLI setups and not to mention especially with 3xmonitor setups.

The scaling of a 6950 CF setup is superior to a 570 SLI ones no argue here.
But when faced with 3x Monitors you can imagine that the scaling capabilities drasticly decrease and the result is vastly throttled.
So if you have 100% CF and 70% SLI scaling on a single monitor you can anticipate at least 30-40% loss on a three monitor setup.
And 70% final scaling sound better to me than 40%.

Lastly you have to consider the monitor transer signal....on a single monitor setup it does not matter that much of course but in Eyefinity priorities change of course.
And with the 570 which has in my oppinion not properly been specified for a multiple monitor use it is harder to achieve a fast enough transeral rate than it is for an AMD card.


That is why I ruled out the 570 SLI
6970 CF would be just as bad of a choice though.

So 6950 CF would be good for now and it also has a great resell value don´t you think?

Quote:
Originally Posted by Valafar View Post
Stick with the 6950 2gb crossfire setup. For an Eyefinity setup the extra vram does make a difference even more so once you start cranking up all the eye candy and AA.
Lol you think I will use AA at Eyefinity resolution?^^
It is unecassary because the acualing aliasing is unoticable at such a res.
Still thanks for your input you are right compared to the 570 SLI 6950 would be the better choice but I am still eager to find a better solution^^


and @ compman: With a Bravia Eyefinity setup .... the amount of screens would matter even though the res remained at 1080p ....they are HDMI connected ..and tests have shown that HDMI causes a little performance drop compared to DVI and VGA.
Also in Eyefinity the res does of course not remain 1920x1080
Edited by Kung Pow - 4/15/11 at 1:57pm
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post #9 of 13
Quote:
Originally Posted by Kung Pow View Post
True, but I am not judging the cards I am judging the performance a inferior amount of VRAM could provide compared to a far superior one.
And actually it is not only the amount that plays a dominating factor also the quality and timings.


Of course if the VRAM is fully occupied tha normal RAM comes to aid.
Which is exactly what will happen if you run a 3x Monitor setup with 570 SLI and play very graphic intensive games at max settings such as Crysis.
The VRAM will be full and the RAM will be used for the residualing needs.
The only problem with that is there is a difference between DDR5 GPU VRAM and DDR3 Desktop RAM.

That is why a 6950 CF would be at least better suited for a 3x Monitor setup.
Because even at high settings and a mad resolution such as Eyefinity claims...the VRAM will most possibly not be fully occupied.

But not only at high resolution does the VRAM matter ...also with high graphical settings such as AA,AF,shadows,multi sampling , Vsynch etc etc which are all very VRAM intensive options a superior amount comes to hand.

Also does scaling play a big role with SLI setups and not to mention especially with 3xmonitor setups.

The scaling of a 6950 CF setup is superior to a 570 SLI ones no argue here.
But when faced with 3x Monitors you can imagine that the scaling capabilities drasticly decrease and the result is vastly throttled.
So if you have 100% CF and 70% SLI scaling on a single monitor you can anticipate at least 30-40% loss on a three monitor setup.
And 70% final scaling sound better to me than 40%.

Lastly you have to consider the monitor transer signal....on a single monitor setup it does not matter that much of course but in Eyefinity priorities change of course.
And with the 570 which has in my oppinion not properly been specified for a multiple monitor use it is harder to achieve a fast enough transeral rate than it is for an AMD card.


That is why I ruled out the 570 SLI
6970 CF would be just as bad of a choice though.

So 6950 CF would be good for now and it also has a great resell value don´t you think?


Lol you think I will use AA at Eyefinity resolution?^^
It is unecassary because the acualing aliasing is unoticable at such a res.
Still thanks for your input you are right compared to the 570 SLI 6950 would be the better choice but I am still eager to find a better solution^^


and @ compman: With a Bravia Eyefinity setup .... the amount of screens would matter even though the res remained at 1080p ....they are HDMI connected ..and tests have shown that HDMI causes a little performance drop compared to DVI and VGA.
Also in Eyefinity the res does of course not remain 1920x1080
So Eyefinity should not be operated with 570 SLI?
post #10 of 13
I would actualy go for a crossfire 6990 setup.
    
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