This may be a stupid question, but can you crossfire a 3870 with a 3850? Or would that cause problems? I thought I had read you could do that somewhere, but I don't remember for sure.
I know they make 512mb versions of the 3850 now also.
Both cards will run at whatever clock speed you set them at, but the Crossfire drivers will reduce usable RAM size to that of the lowest capacity card.
If you run a 3870 and a 512mb 3850, you'll be a bit behind two 3870's in raw performance.
If you run a 3870 and a 256mb 3850, you'll basically have the same performance as two 256mb 3850's.
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