Crossfire is a joke!
ATi Tech:
Hmm so we still have no answer to nVidia's SLi, and we have no designs to tape out a chip with the core logic on?
ATi Tech 2:
Yeah, but why don't we just bodge job a composite chip from silicon image and call it a master card. We can then make this master card hard to get and make people pay through the nose. We can also make it down clock to a slower card if paired up with something slower. However I do warn you that I was dropped on my head as a baby and this could all be a crap idea.
ATi Tech:
Well we need something, lets go for your plan.
Then they actually integrate core logic and make crossfire two. The only thing that sees a benefit to crossfire is 3DMark. Wow weeee.
Even SLi doesn't give you 2* the performance despite paying 2* the money, and crossfire is even worse. The amount of bugs with crossfire is stupid.
I can't even see why you are contemplating even going crossfire??? The only people who get a benefit from crossfire and SLi are nVidia and ATi. Laughing there arses off because muppets keep forking out on their top end SLi/CF capable motherboards and buying two of their cards.
What does the end user get in turn? Fustration that games sometimes don't work the way they should. ATi users get an extra kick in the knackers because they need to wait a month for a new driver just so ATi can have a year.month naming convention. At least nVidia get beta drivers leaked out that sometimes can help.
Unless you give me the reason that you run a 30" + monitor or you're looking to break the world record for 3DMark with the cardsu under LN2 or dry ice then crossfire is pointless for you.