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Crossfire X1800XT 256 mb help

  • Radeon
  • Graphics Cards
  • Crossfire
  • Graphics
Last response: in Graphics Cards
March 28, 2006 2:28:38 AM

I have a Saphire x1800XT 256mb and i want to get another x1800 for my new mobo (A8R32-MVP Deluxe). people keep saying i need to buy a special master card but i cant find anotherx1800xt 256mb master. only a x1800XT 512. could i use that with my other Graphics card?

More about : crossfire x1800xt 256

March 29, 2006 2:35:00 PM

As far as I know it just has to be the same chip generation, memory amount and core speeds can be different with crossfire.

So as long as your pairing a 1800 with a 1800 it does not matter what the other specs are.
March 29, 2006 2:55:47 PM

That is my understanding too, altho I have not heard it specifically mentioned for different memory configurations...
Just like the CF will let both cards work at their individual full speeds, I suspect it will work with different memory sized cards, splitting the load based on what each card can compute.
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April 2, 2006 6:39:34 AM

thanks for the advise but do i have to buy another special X1800XT that is crossfire mastercard, or can i just buy the egzact card that i bought and it will work?
April 2, 2006 6:42:37 AM

The x1800 range needs a master card to work in crossfire, so yes you will have to buy the special crossfire mastercard.
April 2, 2006 2:09:25 PM

Yes , Agree With Other Boys , For A CrossFire System , First You Need Master Card ( X1800XT 512Mb CrossFire Edition ) Then Your X1800XT 256Mb Can Be The Secondary Card ... & Memory Is Not Problem , Just Make Sure That Both Card Are The XT Version Not XL ...
April 3, 2006 3:47:37 AM

thanks, haveing a 256MB and 512MB card, will they both run at top speed or will it split the power because they have different memory? i have the A8R32-MVP Deluxe mobo
April 3, 2006 5:28:17 AM

That isnt true, in crossfire they will run at their normal speeds they do not have to both run at the same speed. If you pair an xt with an xl one will work as an xt on will work as an xl. Memory im not to sure but im assuming its the same. The setup wil balance the load depending on the cards, so it will give the faster card more to do than the slower card.