PSU 750W enough?

I have (or i buy)
CPU: i5 6500
Motherboard: Gigabyte Z170XP-SLI
GPU: 2x GTX470 SLI
SSD: transcend ssd370s 250GB
HDD: old WD 250GB (7200rpm)
PSU: ?750W?

I wanted EVGA B2 750W, but is out of stock for at least 35days a I need something within a week and I don't know which one to buy :/ I was thinking about EVGA G2 750W, but it's more expensive and I want to save some money.
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More about psu 750w
  1. A GeForce GTX 470in SLi requires 55 to 60 amps on the 12v + rail and a 850 watt power supply with 4 PCIE power connections.
    EVGA SuperNOVA 850 B2
  3. Ouch. :D
    Isn't there different PSU but cheaper with similar qualities? (It can be more W, but cheaper?It doesnt makes even sense...)
  4. You need a quality PSU to run that , any cheaper the quality is lacking.
  5. OR better in the same price range...
  6. because EVGA B2 850 is also out of stock...

    Corsair RM850
    Seasonic M12II-850 EVO
    should be in same conversation?
  7. Best answer
    Seasonic M12II-850 EVO

    Very good.
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