Quote Originally Posted by Khatovar View Post
Granted, I'm no hardware guru and we may not be talking about the same things, but you seem to be saying that a secondary card will never be used. That's not what I see with my setup.

You don't use SLI/Crossfire for multiboxing, you run the cards independently and set the loading preference in WoW's game options. That is, you aren't pooling the cards and letting them spread out the load, you run the cards independently and split the load. I run 2 cards, each with their own monitor and each of my cards are utilized while multiboxing.

Unfortunately, I don't have my slave accounts subscribed, so all I can show is loading the login screens, but -

Here's MSI Afterburner showing WoW1 on card/mon 1. GPU2 is flatlined because I'm not running my slave accounts. About a third of the way in, I launch my slave accounts and GPU2 is active.

msi1.png

And here's where I close my slave accounts...GPU2 flatlines out again. I then change the settings in WoW1 to load on card/mon2. I close out WoW1 and GPU1 flatlines. I load up WoW1 again and it launches on card/mon2, clearly using GPU2.

msi2.png

While there is no doubt that a single, more powerful card is the preference for any number of reasons, you can effectively make use of multiple cards. The second card doesn't simply sit there doing nothing.
this is how i run mine card 1 just runs my main screen card 2 runs the 2 slave screens i would like to stay with 2 cards as ill be adding a 4th monitor.