Can I run different brand 7950 cards in one litecoin rig?

[FDcoin]

Hi

As it is impossible to get 4 equal 7950 cards at the moment - is it then possible to mix different brand cards?
Guess they need to run on same driver would that be possible with a generic ati driver?

Any one tried that?

Thanks.

[anfry]

yes, but mine for btc rig.