I am planning on buying a new Motherboard and 2 Graphics Cards.
Motherboard - MSI 970A-G46
http://www.newegg.com/Product/Product.aspx?Item=N82E16813130637
Both Graphics Cards - Sapphire Radeon R9 270
http://www.newegg.com/Product/Product.aspx?Item=N82E16814202062
Now I want to Crossfire these cards but they say they need a PCI-e x16 slot and this motherboard has 2 PCI-e x16 slots but its says in the specifications it says that one slot runs at x16 and one runs at x8 but since the cards need x16, I don't know if these cards can crossfire on this motherboard and if not please tell me why and what's the difference between the two slots that's say they are x16 but run at differently.
Link to picture if you can't see: http://imgur.com/QjCrO7L
Motherboard - MSI 970A-G46
http://www.newegg.com/Product/Product.aspx?Item=N82E16813130637
Both Graphics Cards - Sapphire Radeon R9 270
http://www.newegg.com/Product/Product.aspx?Item=N82E16814202062
Now I want to Crossfire these cards but they say they need a PCI-e x16 slot and this motherboard has 2 PCI-e x16 slots but its says in the specifications it says that one slot runs at x16 and one runs at x8 but since the cards need x16, I don't know if these cards can crossfire on this motherboard and if not please tell me why and what's the difference between the two slots that's say they are x16 but run at differently.
Link to picture if you can't see: http://imgur.com/QjCrO7L