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#21
Hi, I have got the same motherboard like you, but LE version and I have RX460, but only FX4100. The usage is 297W at load (100% CPU/GPU), so you can add about 30-40W with your CPU. I have 550W PSU, the highest efficiency is usually in the 50-60% of PSU's usage, not to mention silence, so 600W-650W would be ideal.
P.S. Interesting, that you have EVO version, but without a mofset cooler. I have actually ordered a normal version with 8pin CPU and with mofset cooler, but they sent me LE instead with 4pin only. Well it supports 140W as well, so I guess it is fine, I just had to put on some coolers on mofset, I plan to add 8370.