Hey everybody! So, the holiday season is rolling around and I'm thinking of treating myself to a new graphics card. I currently have two HD Radeon 6870s crossfired in my computer, but I'm thinking of upgrading to one Nvidia GTX 680. I've done extensive research between the two, but nothing seems that conclusive. This is primarily because most comparison websites don't take into account that I'm using two cards. Here's my question, is it worth it to switch over?