Which is Better?

xeonite

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Nov 20, 2008
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Which one of these will be faster?

A single HD4870x2 or 2 HD4870 1gbs in crossfire (i game at 1650 x 1050 )

Thanks :)
 

L1qu1d

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Sep 29, 2007
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It really depends on the game. In left 4 dead, the 4870 X2 performs worse than 2 4870s in Crossfire.

Thats more of a matter of what game you'd like to play. I would do some googling

In theory, they should both perform the same.
 
If you have a P45 motherboard, the HD 4870 X2 will win because the other combination will run at 8x+8x and suffer from bottlenecks. On an X48 motherboard the results are very close.
 

V3NOM

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Jun 18, 2008
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ahh but the question is, will it get bottlenecked by x8x8?

much you have to learn, master yoda.

:lol: sorry couldnt resist...
 

enaher

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LOL :D , Id go HD 4800 X2 just beacuse in the long run its cheaper you only use one slot, etc etc, but if you have a x38 or x48, or x58 and even a 790FX its worth to get 2 HD 4800 instead of the X2.
 


Not sure I understand the question. A single HD 4870 X2 would occupy a single slot, and P45 motherboards do not drop to 8x8x when a single slot is occupied. That HD 4870 X2 would have the full 16x bandwidth available to it.