which psu should be better

firefalcon

Distinguished
Oct 24, 2015
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18,510
My specs
Intel i7-4790k
Mother board-msi krait edition SLI
Gtx970(msi)
G.skills ripjaws x 16gb rqm
Corsair hydro series dual radiator
3*1TB hdds
Blue ray player
so which PSU would be great vs650,rm650, or should I go for 700watt psu