GAGAN 55 :
Can i crossfire R9 280X TRI-X with R9 280X TOXIC????
If yes then will you please give a tutorial????
Yes you can crossfire any 7950 with any 7970 and any R9 280(X) and vice versa.
Just plug in the cards into your motherboard (consult your manual to which pci-e slots to use) and connect the crossfire bridge between the two crads. Then plug in the power for both crads and boot up the system. Install the drivers and reboot and then enable crossfire in Catalyst Control Center.
Maybe this helps: http://support.amd.com/en-us/kb-articles/Pages/AMDCrossFireFAQ.aspx