Quote Originally Posted by 'Taliesin',index.php?page=Thread&postID=176583#pos t176583
My setup: Dell XPS 730, 8 GB RAM, 2 x ATI Radeon HD3850 video cards, 2 x Dell 24" widescreens (2407 and 2408 models).

First question is whether you are using Vista 64bit that has (or can make use of) more than 4 GB of RAM? Otherwise, you need to keep in mind that adding more video cards will make your usable RAM plummet. Vista 64bit keeps RAM and video memory completely separate, unlike other versions.

Also, Crossfire/SLI won't necessarily help when using more than one monitor. In my case, I use one monitor per video card and keep Crossfire disabled. There are arguments for and against using Crossfire, but opted to go with dedicated video for each monitor out of preference. You can try with and without Crossfire and see how well they perform with 4 monitors. Is a simple matter of removing the Crossfire cable from the cards and disabling the feature in the control center software if you don't like it.

Edit: In case it wasn't clear, "More =/= better, in all cases" is supposed to mean "More is not equal to better, in all cases".
I was under the impression after reading the WoW Forums that XFire doesn't work with WoW.
Can you or anyone else confirm that it does.
Thanks.