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Question on CrossFire

#1
User is offline   ColonelOne 

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I've seen it mentioned in several places, but never quite understood what it meant to crossfire 2 graphics cards, or what the benefits are, or even how to do it. Can anybody explain it to me?

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#2
User is offline   noop 

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Basically Crossfire is ATI's version of SLI, which basically is taking two cards, linking them up, and trying to make them function as one mega card. If you have two cards and they are the exact same, you double performance. If you have one card that is faster, one card that is slower, the faster one will downclock to the slower one, but will be double the speed of the slower one.

Here is information on CrossFireX from ATI's website: http://game.amd.com/...irex_about.aspx

Hope this helps,
noop
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#3
User is offline   ColonelOne 

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View Postnoop, on 17 February 2010 - 04:49 AM, said:

Basically Crossfire is ATI's version of SLI, which basically is taking two cards, linking them up, and trying to make them function as one mega card. If you have two cards and they are the exact same, you double performance. If you have one card that is faster, one card that is slower, the faster one will downclock to the slower one, but will be double the speed of the slower one.

Here is information on CrossFireX from ATI's website: http://game.amd.com/...irex_about.aspx

Hope this helps,
noop


Awesome, thanks, from the website I got the impression that in order to CrossFire I'd need a motherboard that was CrossFire ready, do most motherboards fall into this category?
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#4
User is offline   noop 

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You do need a motherboard that supports crossfire to do crossfire. The motherboard will be marked as "Crossfire Ready" if it supports Crossfire. Most motherboards today have either crossfire or sli support except for motherboards from Dell, HP, etc. Don't assume that this is always the case. Read about your motherboard first before you make the decision to buy it to do crossfire or sli :P
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#5
User is offline   ColonelOne 

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View Postnoop, on 17 February 2010 - 05:00 AM, said:

You do need a motherboard that supports crossfire to do crossfire. The motherboard will be marked as "Crossfire Ready" if it supports Crossfire. Most motherboards today have either crossfire or sli support except for motherboards from Dell, HP, etc. Don't assume that this is always the case. Read about your motherboard first before you make the decision to buy it to do crossfire or sli :P


Good to know, thanks a lot!
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#6
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No problem, glad to help :)
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#7
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So to clarify, two identical 1Gb graphics cards crossfired would function the same as one 2Gb graphics card?
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#8
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Pretty much
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