I recently bought a Radeon HD 7870 for my computer and i was wondering if i could cross fire my graphics card i already have with it. It is a Radeon HD 7700 i have a 700 watt power supply. I am just wondering if it is even worth it and if it will damage my processor. I have a ASROCK N68-VS3 FX mother board and a AMD FX(tm)-4100 Quad core Processor. I hope this tells you if i can crossfire these or not or if its even worth it thanks =)