Which crossfire setup am I better with: 7970 ghz +280x OR 280x x2

Masonisbetter · Oct 22, 2013

It looks like I could sell my 7970 ghz edition for between $200 and $250, money which I would put towards a 280x if I did do that. My question is would the performance of having both 280x's be noticeably better than having a 280x linked with a 7970? I've seen plenty of videos saying it works just fine with the two different cards, but would it be optimal to have identical cards?

DudeMartin · Oct 22, 2013

The performance difference will be insignificant. Because the R9 280X is basically a renamed 7970 GHz, those two can work perfectly together in a Crossfire setup. To be honest, the cheapest option should be your best one.

Jaxem · Oct 22, 2013

Ditto to that, you might see a bit of difference with the 280x and a vanilla 7970 as the 280x is essentially a GHz edition 7970 and it would clock down to the 7970's speed. So (unless you overclock the 7970) you'd end up with the same level of difference between two vanilla 7970's xfired vs two GHz edition 7970's xfired... 10 to 15 percent total is all.

Masonisbetter · Oct 22, 2013

Jaxem :

To be honest that 10 to 15 percent is what I'm looking to get out of this so I may end up going with the two 280xs after all. If I can manage to sell my 7970 for $250 the small change would be worth it. I'll probably start by buying the 280 and cross firing with my 7970 and then compare with some 280 x2 benchmarks to see if this is really the case.

Jaxem · Oct 22, 2013

By all means go with the 280x's then

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Which crossfire setup am I better with: 7970 ghz +280x OR 280x x2

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