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6950 and 6970 CF

post #1 of 6
Thread Starter 
Quick question, just to verify what I have researched and read on this forum.

If I flash a 6950 to 6970, can I crossfire that card with a regular 6970?

Premise is that I'm getting a 6950 from a buddy. And I want to CF with another card. Should I purchase a 6950 and flash it as well or just purchase the 6970? I would like there to be as little chance of issues, has anyone attempted this? Am I just mad with power? Thanks for any input.
post #2 of 6
you can crossfire with any card
post #3 of 6
They're in the same series, so you'll be able to crossfire them. But I'd purchase a second 6950 and flash that as well.
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post #4 of 6
You can Crossfire 69xx Cards with 69xx Cards. So you can crossfire them without flash. But If you flash it, I don't know if it will show up as two 6970...
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post #5 of 6
Thread Starter 
Thanks for all the replies guys, you truly are great.

I was unaware that I could CF a 6950 and a 6970 without modification.

I maybe able to get a good discount on a 6990 from my work, so I may do that now that I know I can CF with the 6950. Thanks!
post #6 of 6
Yes but CF flashed 6950 + 6970 can lead to certain instabilities.

The Cayman XT differs from the Cayman Pro a little.

The 6970 has higher Memory Timings and overall different Memory settings such as voltages and other types of structural insimilarities.

So if you would like to have the full performance and no ocasional Blue Screens I would recommend to not only unlock the 6950 but also flash it to full 6970 BIOS which applys all the timings and other insimiliarities and turns them into equal settings of a 6970.

That should próvide optimal performance and stability
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