Gtx970 power requirements

[Troxer]

When i am dealing with a gtx 970 strix from asus what type of powersupply do i need
And what are the power requirements
Also what would suggest i use to power it

 

[i7Baby]

A good 500+W - from tiers 1 or 2 of http://www.tomshardware.com/forum/id-2547993/psu-tier-list.html#xtor=EPR-8886

eg XFX550, Seasonic 520 or 550, Antec HCG 520M