My current setup is:
Intel i5 4570
8GB ram 1333mhz
1TB hard drive
600W PSU
Radeon 7850 2GB HD
MSI Z87-G41 Motherboard
1x200mm & 4x120mm Fans
I wanted to get another graphics card just for that extra fps. I know close to nothing about the dual gpus. So If i grab some like $60 radeon card and install it, would it work? Or a cheap nvidia card?