sup everyone.

As some of you know, I have a gecube hd3850 512mb, bought from newegg. Im very happy with the card, and lately the prices have dropped quite significantly, along with the reviews of crossfire with the HD3800 series, this is making the crossfire setup quite tempting. Unfortuntely, Gecube is a wanking bastard of a company, they wouldn't drop their price down. So now im stuck with this unusual question, is it possible for me to setup crossfire running 2 different make 3850?? Both have 512mb of ram, but ultimately different brand.

http://www.tomshardware.co.uk/foru [...] sfire-faqs

What about brands ?
Well the brand doesnt matter , again for example , you can use a XFX card with a EVGA card , or a SAPPHIRE card with a DIAMOND card , just make sure they have the same memory and same clocks.

What will happend if 2 cards have the same amount of memory but one has higher clocks than the other?
One of the best ways to learn is to make examples.
You have a 8800GT(Normal edition,no OverClocks) and you want to add another 8800GT(Which is OverClocked),then:

1_The OverClocked one will lower its clocks to reach the Non-OverClocked card.

2_You can OverClock your card(The one that has Stock frequencies) and reach the OverClocked card.
Remember, you cant ALWAYS OverClock the normal card to reach the other card,because it may not OverClock that much and may become unstable.

Thanks for the explanation. I already know that one card will reduce its speed in order to match the other card, thats how pretty much all the pc components worked, pretty much like how RAM works.

But the main issue is that i dont know what memory modules i have on my HD3850, is it not possible to CF the two card even if they are running different memory timing and memory chip??

Thanks

You should be able to do it no problem. Crossfire is a lot less restrictive than SLI.

Yes absolutly you can run two different brands of ATi based 3850 cards in Crossfire. Crossfire has always been that way. Only when Crossfire first came out was there any restriction on what you could use and that was only that you needed a Master card and another of the same series, you could still mix brands of cards. When I had my Crossfire setup one card was an ATi card and the other was Asus.

I have read articles confirming that you can mix brands. As Maziar stated you should try to match the cards as closely as possible to avoid complications.

I havent done this but have read only positive postings saying this is possible and none saying it isnt.