Radeon HD7770 + Radeon HD3400?

Teh AssAsinZ

Honorable
Aug 11, 2013
22
0
10,510
Is it possible to use both a VTX3D Radeon HD7770 X-Edition V3 along with a ATI Radeon HD 3400 graphics cards in the same motherboard? (the motherboard does have 2x16pci slots)
Preferably with Crossfire. :)
 

So Basically if i were to add the 3400 it would just make it worse than the single 7770 or would it give the 7770 a little boost?