How much power does this build need?

[mrjojo]

Motherboard : ASUS Z87-A 1150 MB
Intel Core i5 - 3.4GHz - 4670k ( OC 4.4)
VGA : SAPPHIRE HD 7870 GHz Edition 2GB GDDR5
RAM : KINGSTON - 16GB - 1600 - HyperX-(2x8GB)
HDD :Seagate-SATA 3 - 1 TeraByte / 64mb buffer
CPU Cooler : Cooler Master Hyper 212 EVO

 

[Novuake]

No more than 500w from a decent manufactured PSU.

 

[katalyst12]

Here is a good PSU calculator that works well:
http://extreme.outervision.com/psucalculatorlite.jsp

 

[mrjojo]

No more than 500w from a decent manufactured PSU.

is Green a good manufacturer ? i dont have access to Seasonic/XFX/Corsair power supplies in here.

 

[Novuake]

No more than 500w from a decent manufactured PSU.

is Green a good manufacturer ? i dont have access to Seasonic/XFX/Corsair power supplies in here.

Nope, where are you purchasing from?
Provide the retailers site. Then I can find a decent one for you.

 

[mrjojo]

Iran.
here's the page tho it's in persian but ud see the available models. http://lioncomputer.ir/master/search/