Hard to say, not all games support crossfire. It can cause various issues or not work at all like CRO5513Y mentioned. A 1060 will always perform at 1060 levels where 7970's may be limited to performing like a single 7970. Also unless I'm mistaken the 7970's are 3gb vram cards. The 1060 is available in 3gb or 6gb. If you're playing games that make use of more than 3gb vram the 1060 would be a better choice, vram doesn't stack in crossfire.