PSU for a gaming build with crossfire 290

[Christian Barrientos]

This is my build:
http://pcpartpicker.com/p/n8s2bv

Does anyone have any suggestions on a good PSU that will be able to handle both of the cards?
(I have no motherboard in the build because I have no idea on what to get, so help on that is also appreciated)

 

[chris987]

first of all i would change that ram sticks. 1600mhz cl11 is slow for todays standands. 1866mhz cl9 i suggest below is a lot better. asrock offers o/c ability crossfire and sli support of any possible future upgrade.finally the evga g2 is one of the best 850w the market offers!

PCPartPicker part list: http://pcpartpicker.com/p/qYQkgs
Price breakdown by merchant: http://pcpartpicker.com/p/qYQkgs/by_merchant/
Motherboard: ASRock Fatal1ty Z97X Killer ATX LGA1150 Motherboard ($164.98 @ SuperBiiz)
Memory: G.Skill Ripjaws X Series 8GB (2 x 4GB) DDR3-1866 Memory ($75.60 @ Newegg)
Power Supply: EVGA 850W 80+ Gold Certified Fully-Modular ATX Power Supply ($109.99 @ Newegg)
Total: $350.57
Prices include shipping, taxes, and discounts when available

 

[Vic 40]

My vision on things,
http://pcpartpicker.com/p/6T9gQ7