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Can I Crossfire with hd 6950 and 6970 ??

post #1 of 14
Thread Starter 
I have Other Pc has visionTak hd 6950 2GB full unlock to 6970(880 1375) can i Crossfire with HD 6970 Lightning ????? is good idea or bad idea becuse it's hard to find Hd 6950 2GB reference cards.

today newegg open box for hd 6970 lightning was 230.00
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post #2 of 14
That newegg open box sold out in a minute...

But yes, you can CF any 69XX card with another 69XX card.
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post #3 of 14
You betcha.
post #4 of 14
Thread Starter 
Quote:
Originally Posted by indigo995;13755077 
That newegg open box sold out in a minute...

But yes, you can CF any 69XX card with another 69XX card.

But How is the performance ??? same as CF 6950s ??? or Performance like CF
6970s
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post #5 of 14
in between...?
    
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post #6 of 14
Thread Starter 
Quote:
Originally Posted by AirandWater;13755127 
in between...?

CF hd 6950 2GB full unlock to 6970(880 1375) and hd 6970 lightning ..
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post #7 of 14
Quote:
Originally Posted by yoyo711;13755152 
CF hd 6950 2GB full unlock to 6970(880 1375) and hd 6970 lightning ..

It should scale appropriately to the lower of the two's shaders, clocks, etc. If you did a full 6970 bios flash, the lightening will run as a second 6970, same clocks as the other card. If you're overclocking either of the cards, they'll fall to the lower clocks of the two cards.

Now, if your 6950 flashed is unlocked and overclocked but still registers as a 6950, I have no idea, but would be curious to what others have to say about it.
post #8 of 14
I'm pretty sure that in cfx, the one card downclocks to the speed of the lower speed card. If the 6950 is unlocked AND overclocked to 6970 speeds, the cfx will perform like 2 6970's.

Edit: They'll both run at 880 1375 with 1536 shaders.
post #9 of 14
If anypne buys an open box lightning from newegg let me know. I rma'ed one and can give detailed instructions to find the black dots I put on it.
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post #10 of 14
Thread Starter 
Quote:
Originally Posted by gregory121295;13755183 
I'm pretty sure that in cfx, the one card downclocks to the speed of the lower speed card. If the 6950 is unlocked AND overclocked to 6970 speeds, the cfx will perform like 2 6970's.

Edit: They'll both run at 880 1375 with 1536 shaders.

Thanks
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