Is 650W enough?

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Aug 9, 2015
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I ordered my 650W PSU late December.. I didn't think I'd need much power, now I'm questioning that.
Amazon is still giving me the option to return the PSU..I've got Z97 and i5 4690k on the way.. Should I return the PSU now, while waiting for other parts, and upgrade to 850?

When they arrive my system will be:
PSU: RM 650x Gold 80+
CPU: i5 4690k
GPU: Sapphire Nitro R9 390
Motherboard: Z97 PC MATE
RAM: 8GB 1600mhz
1x 1TBHDD 7200rpm
1x 250GB SSD
5 Fans
And those really dim LEDS supplied with my 530 source full tower.

* I will be playing at 1080p for couple months, so I won't need to overclock for that... But after that, I plan on going 1440p, maybe I'll have to then..

Will this it be enough?