What kind os PSU would I need?

[DwzLT]

Can someone help me calculate how much wattage I need for my PSU?

GPU: AMD Radeon R7 200 Series
GPU: AMD FX 8350 x8 4ghz
Mobo: AMD 990X/SB950 SAM3+ATX/GA-990X-GAMING SLI GIGABYTE
Using 2 usb3 slots and 4 usb2
Ram: 8gb ddr3 + 2gb ddr + 2gb ddr3
1 DVD+R DL burner
1 sata hdd (old one if it makes a difference)

For all of the above what kind of PSU would I need?

I am not planning on overclocking anything

 

[Dark Lord of Tech]

Get a decent 550w.

 

[DwzLT]

I got an older 500, good enough?

 

[Dark Lord of Tech]

I would make sure it's a good one.

 

[Dark Lord of Tech]

http://www.1a.lt/kompiuteriu_komponentai_tinklo_produktai/korpusas_ir_ausinimas/maitinimo_blokai/xfx_atx_23_ts_550w_p1550sxxb9?search_text=XFX%20ATX%202.3%20TS%20550W%20P1-550S-XXB9
XFX 550W made by SEASONIC.