Get 2 580's, you don't need 3 cards, scaling of the 3rd card is horrible in 3D Surround.I have about the same setup, i dedicate 1 GTX480 to Physx for 3D surround, i found that i have less driver related issues using 2 cards.
Originally Posted by Varjo;11666744
The above advice is wrong. I run 3x 30 inch monitors, it's roughly the same bandwidth that you'll be running. The issue is, in surround and especially 3D, tri SLI doesn't scale nearly as well as it does in normal circumstances.
I have played a ton with both gtx480 sli and tri sli. There is only a small difference between them. TBH, the limiting factor is frame buffer (VRam) and texture units.
I would get 2x gtx580s. DO NOT GET 570s or 470s, at that res you need all the TMUs and memory bandwidth you can get. The normal rules of scaling don't apply the same way.
So yea.... get 2x gtx580 and be happy.
OK thanks for your suggestion
May I ask how many FPS increase do you get from one card to SLI to 3-Way SLI in your configuration? It's hard to find a GTX 580 review that using multi-monitor display.
I'm using a similar setup and have to say I don't really like 3D surround. This is mainly because of the glasses. You end up seeing the side monitors in your perihperal vision outside of the glasses and it screws it up. I much prefer just using 2D surround for gaming and 3D on a single monitor.
You can see my surround videos on my Youtube channel.