Hey guys, I recently got a good deal on a gigabyte radeon 7870 at microcenter, This was to replace my 6850 that I had been running before. I was thinking that I might crossfire it in the future with the same card but my motherboard has only one pci express 3.0 slot. This means that I would have to pair up the cards on a 3.0 and a 2.0 slot. How will this affect the performance and what are your suggestions for what I should do? My mobo is a z77a-g41 from MSI.