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Can you do Xfire with pci x4 and x16?


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I was goign to have the 5750 in x16 and either a 4670 or above in the x4... is it worth it or should I just run 1 card x16? No way I can make it x8/x8 in bios right?

Yeah you should be ok, the 4670 may not be limited at all, though I must ask why you need a 4670 running along a 5750??

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I was goign to have the 5750 in x16 and either a 4670 or above in the x4... is it worth it or should I just run 1 card x16? No way I can make it x8/x8 in bios right?

You can't CrossFire these two cards, the first two digits have to be the same ;)

And right, you cannot change how lanes are configured, this is hardwired on the board.

Edited by Zertz

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You can't CrossFire these two cards, the first two digits have to be the same ;)

And right, you cannot change how lanes are configured, this is hardwired on the board.

:withstupid: Yea they have to be the same generation cards...

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Is it worth getting another 5750 for the x4 slot or should I save my money?

If it was me personally I would save my money and upgrade the motherboard/cpu to an I7 and throw a couple 5870s in it, just really depends on your needs...

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As you can see in the pic below the 5870 didnt lose much bandwidth in a 4x pcie slot. The 5750 uses way less beadwidth so it wont affect it.

crysis_1920_1200.gif

wow that's interesting, definitely couldn't run it at 1x but 4x isn't much of a loss at all. a 5750 CERTAINLY won't get affected now. and too OP I'd save money for a 5850 and then sell your 5750 at that time :)

 

If it was me personally I would save my money and upgrade the motherboard/cpu to an I7 and throw a couple 5870s in it, just really depends on your needs...

really all he needs/wants is more graphics power, and he has a very nice cpu as it is (clocked to 3.8ghz no less :thumbs-up:)

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