PSU wattage needed?

This is my set up and i was wondering what a sufficient wattage PSU would be to power it and not worry about anything going wrong.

CPU Intel Core i7-3930K 3.2GHz 6-Core $564.98
CPU Cooler Noctua NH-D14 SE2011 $74.99
Motherboard Asus Rampage IV Extreme EATX LGA2011 $419.99
Memory Corsair Vengeance 16GB (2 x 8GB) DDR3-1600 $73.74
Storage Western Digital Caviar Black 1TB 3.5" 7200RPM $91.33
Samsung 840 Pro Series 128GB 2.5" SSD $139.49
Video Card Asus GeForce GTX 690 4GB $1017.48
Optical Drive Asus DRW-24B1ST/BLK/B/AS DVD/CD Writer $24.98
Operating System Microsoft Windows 7 Professional SP1 (OEM) (64-bit) $135.98
Keyboard Cooler Master Storm QuickFire Rapid $78.00

I was looking at the Corsair AX850 but i dont know if the 850 is enough?
5 answers Last reply
More about wattage needed
  1. Corsair is a nice Psu, 70 amps on the 12v rail.

    This is what the graphics card requires.
    GeForce GTX 690 - 46A and a 650W PSU minimum ...
    It should work fine.
  2. even with all the other stuff that requires voltage ?
  3. Hang on doing the math with power calculator.
  4. Go here ! to work it out.
    I just checked and it seems ok to me.
  5. Thank you all!
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