I've been using a skylake based pc for some months w/o a vga and I was trying to get a 980ti but since my PC is OC ready I was thinking if I should get better RAM/cooling to get things going. So I'm about to get a gtx970 and right now I'm using an old 480watt PSU for my rig (w/o vga). I can spend money on other parts I want (a better colder and quitter cpu fan, changing/upgrading RAM...).
Current rig: 120G 850evo, i5 6600k, OCZ XPG Z1 4GBx2 , Asus Z170k.
So for this rig and future OC what PSU?
Also second question is that which one? 3200MHz CL16 or 2800 CL15? Im going for G.Skill Trident Z 8x2 and can't decide between the two of them.
Any relevant advice is also accepted for other parts.