how big does my power supply should be

skyboy_hd

Honorable
Nov 9, 2013
3
0
10,510
hello,
i'm building my own pc and i don't know how big my powersupply must be. i have a sapphire radeon hd 7870 overclock edition and a amd fx-8350 processor. i got 8 gb of kingston RAM and a asrock 970 extreme4 motherboard.