PSU required for this rig im building

Hello, im trying to build a new rig right now since my old rig is about to die( its about 7 years old :P)

I have chosen to go for SLI for the increased performance but i am curious about what psu i need? I was thinking on the line of about 850W with 63 Amp on the 12+ rail, is it going to be enough or do i need more power? here are the parts i have chosen for this rig:

Intel Core i7-4770K
MSI Z87-G45 GAMING, Socket-1150
Kingston DDR3 HyperX Red 1600MHz 16GB ( i am going to add another 4GB DDR3 from my old rig)
2 X Kingston HyperX 3K SSD 240GB 2.5"
2 X MSI GeForce GTX 760 Gaming 2GB PhysX (going SLI with these)
ASUS DVD Writer, SDRW-08D3S-U

now the psu i was thinking of choosing is
XFX ProSeries Core Edition 850W PSU

Will this be enough? Thans in advance for the answers :)
4 answers Last reply
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  1. It would run fine on a 750watt so your 850watt selection gives it a little more headroom.
  2. rolli59 said:
    It would run fine on a 750watt so your 850watt selection gives it a little more headroom.


    I agree. This will give you a little headroom especially if you decide to over clock any of your components.
  3. Oh sweet :) thx alot for the Quick answers. I have
    Another question, i was thinking of adding 2 additional 120mm fan and another harddrive, Will this psu still hold?
  4. Yes both of those components have very low power draw so it is still a good PSU for your rig.
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