So,which one of these should I get? The Zotac has higher clock and dual fan it looks cool, the EVGA is also okay, but with less clock speed, gaming x is with 6 pin which bothers me a bit. My PSU does have 6 pin and it can sustain the card, its not the best, but will do the job. I'm worried mostly about the clock speed, will it matter that much? Which one do you think i should get?