I have a Evga GTX 650 ti 2gb sc in my computer already, I've been trying to find the same card but seems it is sold out all over or selling for more then when I bought it on new egg last September. Just want to know if I can use a different brand of 650 ti boost or if that's not possible due to the fact that my Evga one is factory over clocked. ORRRR should I just spend the money on two gtx 760's? Originally wanted to do the second 650 card to hold me over to the release of the gtx 800 series later this year. What's your guy's advice for this dilemma?