Is 850W enough for this system (including dual titan x)?

[yellowglove]

How much power would I need, is 850 enough to cover the maximum requirement for the setup below, and still have a bit of room for more? If not how much would I need?
I know 850 is overkill in most cases, but with the overclocking/dual titans I wasn't sure how much higher my requirements would be


Motherboard: Asus X99-A 2011-3 pin
CPU: Intel Core i7 5930K overclocked to 4.6 or 4.7 GHZ
RAM: G-Skill Ripjaws BLUE 16G Kit 3000 (4Gx4)
GPUs: DUAL Asus 12G GTX Titan X Sli
Optical Drive: Asus 24x DVD-RW Serial-ATA Internal Hard drive: Samsung Pro 1TB SSD
Power Supply: ?? Corsair 80+ gold 850 - or is there a better choice
Casing: Corsair 900 D
Cooling: Corsair hydro series H110

 

[yellowglove]

on second thoughts would this be a better choice - Corsair 80+ Platinum HX750i

 

[pushanthegreat]

Go For 1000W

 

[yellowglove]

thanks!

 

[pushanthegreat]

Please select the best solution if your question has been fully answered.