Quote Originally Posted by 'zanthor',index.php?page=Thread&postID=149607#post 149607
If you are using two video cards and swapping the client from one to the other, you will be utilizing the system bus to transfer data between them, I believe this is why there is a performance hit. This is not a problem with one card & two monitors, but I've been told this is the cause and experienced this situation when I tried dual video cards in my vista box.
This is definitely not the situation that I am encountering as I am currently running 2 monitors off of a single card even though I have two.
Actually, for some reason, I can not get a monitor to come up on the second card. I am currently running with both monitor on one card. My preferred setup would be 3 monitors, 2 on one card for WoW and 1 for web surfing etc. on the other. I have an SLI system because I like to
switch the SLI on with maxed out setting for end game raid content. Even running 2 monitors off of one card, my performance goes right
in the tank when I put even a single wow on each monitor. I guess I'll have to decide between doing some more tweaking and testing or
leveling my 4 boomkins to catch up to my DK.