Ok so I have a MSI r9 270x 2g Gaming edition , Just baught a 4GB Sapphire.r9 270x has anyone CrossfireX'd them at all at one point in their lives. ( And don't come up here and tell me That you cant because its a 4GB and a 2GB card. I dont care if i lose the the 2GB on the 4GB Card I aint no Tard. )