I've been waiting to get my hands on the gtx 1070 and it's going to be faster than the titan x. Amidst my excitement I realised that my i5 4690 could potentially bottleneck it. My friends told me that you need a minimum of an i7 for a titan x so a gtx 1070 must need an i7 too, right? I'll be playing at 1080p but i need this card to last 3-4 years. I could get an i7-4790 but it would be very difficult and I'd have to sell my ps4(which I don't want to do). Can i have a gtx 1070 and an i5 without any cpu bottlenecks? Also I have a 450w psu, would that be enough to supporta gtx 1070?