PSU 520 vs 650 vs 750 for music production

Hello everyone,



I'm building a system for music production. I'll be using cubase 8 pro with very heavy sample libraries. I'm just not sure what kind of PSU I need. My build is:



1. Intel core i7 5820k

2. CPU FAN: Noctua NH-U12S cooler

3. Motherboard: Asus x99-a

4. Ram: Crucial DDR4 8x4 2133

6. SSD Drive:Crucial mx100 250 gb

7. HD Western Digital black 3T

8. Soundcard: RME Babyface (usb 2)



In case I don't do video editing and gaming, just music, what kind of PSU do I need? Someone told me to go for 750W that will be future proof, do you think it's overkill?

About budget for PSU, I would invest in a reasonably good PSU to keep the system stable



Thanks in advance!

PSU 520 vs 650 vs 750 for music production