How much power?

[Zarter]

Hi, im looking into getting a modular PSU for my computer that im building. Im trying to figure out weather i should get a 750w or a 850w.
My computer will have:
ASUS M5A99X evo r2.0 atx amd
amd fx-8350
two gtx 760's evga superclocked
16gb of ram
1tb 7200rpm hdd
128gb ssd
CD-ROM drive
and my case has 4 fans with LED's on it.
If someone could help me out fast that would be great. A 750w modular psu is on sale right now for $70 and i wouldn't mind getting that now while its on sale. Thank you!

 

[aznricepuff]

If it's a good 750W PSU it should be more than enough and should give you plenty of headroom.

What is the specific model you are looking at?

 

[Zarter]

the 850w: http://www.newegg.com/Product/Product.aspx?item=N82E16817139011

the 750w: http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=7451089&CatId=5440

 

[ko888]

For a system using two GeForce GTX 760 graphics cards in 2-way SLI mode NVIDIA specifies a minimum of a 700 Watt or greater system power supply that has a maximum combined +12 Volt continuous current rating of 50 Amps or greater and that has at least four 6-pin PCI Express supplementary power connectors. Some of the GeForce GTX 760 cards have a single 8-pin or two 8-pin or one 6-pin and one 8-pin PCI Express supplementary power connectors.

Total Power Supply Wattage is NOT the crucial factor in power supply selection!!! Sufficient Total Combined Continuous Power/Current Available on the +12V Rail(s) rated at 45°C - 50°C ambient temperature, is the most critical factor.

Overclocking of the CPU and/or GPU(s) may require an additional increase to the maximum combined +12 Volt continuous current ratings, recommended above, to meet the increase in power required for the overclock. The additional amount required will depend on the magnitude of the overclock being attempted.