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CrossFire x

post #1 of 11
Thread Starter 
I just saw somebody's sig, abnd they crossfired two different video cards, and i wiki'ed crossfire, and it can says crossfire can be applied to two different cards!

That was such a big revelation, now i dont have to save up that much, i can just get the ATI equvilent of a gtx580(would that be the HD6970?) then crossfire it with the 6990 later on

too bad after i got the EVGA GTX460, i liked it so much, i kinda swore my next card would be from EVGA

i always hated how nvidia makes you have to have the same identical cards to bridge them, this actually might be the point where i buy ATI cards now
post #2 of 11
Is this a question or a statement?
    
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post #3 of 11
Thread Starter 
statement, is that prohibited?
post #4 of 11
Yes but when you crossfire the graphics cards it lowers the power to the lowest card. So basically let's say you do a 6990 and a 6950 crossfire. You're basically getting the same performance as 6950 crossfire, even though you do have a 6990.
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post #5 of 11
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post #6 of 11
Quote:
Originally Posted by BloodyRory View Post
Yes but when you crossfire the graphics cards it lowers the power to the lowest card. So basically let's say you do a 6990 and a 6950 crossfire. You're basically getting the same performance as 6950 crossfire, even though you do have a 6990.
The 6990 would act as two 6950s, no?
    
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post #7 of 11
Quote:
Originally Posted by snelan View Post
The 6990 would act as two 6950s, no?
I've heard the power would lower. Sorry if I made a bad example. I meant like if you crossfire a 6990 with a 6950, the power of the crossfire would be equivalent, to a 6950 crossfire.
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post #8 of 11
Quote:
Originally Posted by BloodyRory View Post
I've heard the power would lower. Sorry if I made a bad example. I meant like if you crossfire a 6990 with a 6950, the power of the crossfire would be equivalent, to a 6950 crossfire.
Major mis-information here. A 6990 cross fired with a 6950 would be similar to a three way 6950 configuration. The 6990 houses two gpu cores, both of which will match the 6950 clocks. The 6990 on its own is already running in crossfire because of its second radeon core.
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post #9 of 11
Quote:
Originally Posted by Red Shift View Post
Major mis-information here. A 6990 cross fired with a 6950 would be similar to a three way 6950 configuration. The 6990 houses two gpu cores, both of which will match the 6950 clocks. The 6990 on its own is already running in crossfire because of its second radeon core.
Ok well sorry, idk they were the only cards I could think of at the time.

But I am correct about the power of the cards lowering if you do a lower graphics card with a higher graphics card, right? I mean like the example I gave was a bad example, but I heard that was the case with lower video cards.
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post #10 of 11
Thread Starter 
thanks for the info!

ill probably get a 6950 or 6970 now and get the 6990 in the future.

does the 6990 house 2 6950 or 2 6970 cores? i know the gtx590 houses 2 gtx570 cores rather than 2 gtx580 ones
Edited by mnkeyprince - 6/15/11 at 7:02pm
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