Was wondering if my power supply is sufficient.

[ryan1983style]

Here are my specs. Which are in the mail
msi x99s gaming 7
intel 5820k
16 g ram 3000.
Here is what I'm adding this to.
1 optical drive
1 hdd
1 GeForce GTX 760 2GB 256-Bit GDDR5
I currently have a 850 watt power supply. Can I add another video card?

 

[Archaic59]

list the exact brand and model number of your power supply.