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Can you Crossfire a 6870 with a 6850?

post #1 of 12
Thread Starter 
I'm just curious since I found a very cheap 6850 so I would consider CFing if it is possible.

Would the 6870+6850 perform a lot worse than the 2x6870 setup?
post #2 of 12
No sir you cannot crossfire two different GPU's.
post #3 of 12
Yep! Should be great as well. Not far off from 2x6870
AMD lets you crossfire any card of same series. 5750+5770, 5830+5850+5870, 6850+6870, 6950+6970
Edited by Wildcard36qs - 7/24/11 at 5:07am
   
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post #4 of 12
@phain check your facts before you post. Yes it is possible. Its also likely that you will be able to overclock the 6850 to 6870 clocks and thus lose only a tiny bit in performance vs 2 6870's. If the 6850 is super cheap I would say go for it.
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post #5 of 12
Thread Starter 
Quote:
Originally Posted by fashric;14326638 
Yes it is possible. Its also likely that you will be able to overclock the 6850 to 6970 clocks and thus lose only a tiny bit in performance vs 2 6870's. If the 6850 is super cheap I would say go for it.

6850 to 6970 clocks? Does this include creating a supernova in my PC Chassi?
post #6 of 12
Quote:
Originally Posted by phain;14326634 
No sir you cannot crossfire two different GPU's.

How would you explain that you can flash a 6850 to a 6870 then?
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post #7 of 12
Obviously a typo. Someone offers you some advice and you only pick up on an obvious typo? Pretty much sums up this place
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post #8 of 12
Quote:
Originally Posted by ComradeNF;14326645 
6850 to 6970 clocks? Does this include creating a supernova in my PC Chassi?

No, would just mean that by e.g. using MSi Afterburner, you could check the stock voltage and clocks on the 6870, switch to your 6850, and increase the voltage and clocks, so it matches each other smile.gif

- at least that was what I was thinking smile.gif
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post #9 of 12
Yeah, you can. I think the difference with the 6850 vs the 6870 will be minimal, if at all noticeable.

Also, look here for a similar situation:
http://forums.amd.com/game/messageview.cfm?catid=262&threadid=150746&enterthread=y
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post #10 of 12
Thread Starter 
Quote:
Originally Posted by WhitePrQjser;14326652 
No, would just mean that by e.g. using MSi Afterburner, you could check the stock voltage and clocks on the 6870, switch to your 6850, and increase the voltage and clocks, so it matches each other smile.gif

- at least that was what I was thinking smile.gif

Oh 6870. I think you made a typo in your previous post then. I was like "there is no way you can get a 6850 to 6970 clocks, let alone a 6950".
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