Ryzen Overclock Power Consumption

[CubeTheThird]

Toying around with parts for my eventual system build, I am settling on the AMD Ryzen 1600 CPU, with intentions to overclock it. My current fantasy system build gives an estimate 300W power consumption total, with all parts at their default configurations in terms of clock speeds. With this, I am looking at PSUs that are rated anywhere from ~400 to ~600 Watts. What I'm wondering is how much of a buffer should I leave, particularly once the CPU gets overclocked (assuming everything else stays at default). What little information I have found suggests that this CPU would require an additional 10-20W over the base estimate of 65W, though it is difficult to find articles to confirm this.

[themctipers]

get 500w or better from a good brand and PSU lineup 

[Damascus]