How much power does my system need?

[G4LL3]

I'm going to build my first PC next summer and everything's going fine except I don't know how much power my system is going to need. So after watching some videos, looking for PSU calculators and tearing my hair off, I've decided to ask help from you guys. This is my build:

Motherboard: Asus Sabertooth Z97 Mark 2
Processor: Intel Core i7- 4790K
Videocard: EVGA GeForce GTX 980 Superclocked ACX 2.0 4gb
RAM: Corsair Vengeance 8gb ddr3 1866MHz
SSD: Crucial M550 256gb
Hard Drive: WD 1Tb 7200 RPM 64MB Cache
Optical Drive: DVD-RW
CPU Cooler: Noctua NH- U12 S
Case Fans: 4x 140mm and 5x 120mm high performance fans

I'm not going to overclock anything nor add anything in this system later. I'm leaning towards 750W PSU but I want to know if 650W is enough...

Thank you for helping and sorry for my bad english 😀

 

[madmatt30]

650w is more than enough - you would get away with a good 500-550w to be honest.

 

[Zerk2012]

A quality 550 Watt would run it but I would get a 650 to have more breathing room.

 

[Enderstream]

Instead of going for a 650w psu, Go for a 550w with a higher Badge, 80+ gold

 

[davcon]

Yes a high quality 600-650W unit would be ideal.

 

[dasulman]

since you can SLI on that motherboard, and you're not going to overclock that cpu then this 750W gold: http://pcpartpicker.com/part/evga-power-supply-120g10750xr
will be great for when you want to add another card.

 

[Zerk2012]

since you can SLI on that motherboard, and you're not going to overclock that cpu then this 750W gold: http://pcpartpicker.com/part/evga-power-supply-120g10750xr
will be great for when you want to add another card.

Never recommend a G1 series power supply!

 

[G4LL3]

So is this fine??: EVGA SuperNOVA 650G1

 

[davcon]

Just buy a Seasonic G Series 650W or X series and be done with it.
Your build is top end and deserves a top end psu.

 

[dasulman]

since you can SLI on that motherboard, and you're not going to overclock that cpu then this 750W gold: http://pcpartpicker.com/part/evga-power-supply-120g10750xr
will be great for when you want to add another card.

Never recommend a G1 series power supply!

sorry, sorry, didn't have glasses on, thought it said G2.
but yeah closest thing to that for SLI-ing whilst still being reliable would be this: http://pcpartpicker.com/part/evga-power-supply-220g20850xr