Hello Everyone, I am currently running a 7970 on an ASROCK PRO4 with a 600PSU. I am looking at two options for my "potential" upgrade. It is either xfiring the 7970 which means I would have to buy a new motherboard (With good PCI.E spacing) because the PRO4 is a 16x and 4x mobo and a PSU with a larger watt. The other choice is to go with the GTX 690 and getting a psu at a slightly higher watt than my current. I've done calculations (roughly) and realized that they are the same price range. Any advice on which path I should follow. Thanks for your help!