Can i crossfire a Sapphire r9 290 preference card with a Sapphire r9 290 vapor-x boost with any performance losses?

[Richard Veres]

Can i crossfire a Sapphire r9 290 preference card with a Sapphire r9 290 vapor-x boost with any performance losses? I have a r9 290 already but i want to upgrade it to crossfire.

 

[Rukeith]

I'm sure any 290 will crossfire with another 290 regardless of brand, someone correct me if I'm wrong.