Is A 400w Psu Enough for a gtx 970?

Donsterdon20

Reputable
Mar 31, 2015
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So i have an athlon x4 860k @ 4.2ghz and the stock is 3.7 ghz and I have an evga 400w psu but I wanna add a geforce gtx 970. Will my psu be enough for this system?

Thanks