Best PSU for my specs

[Prieyesh]

which is the best psu for my rig
My components:
AMD FX 8350
MSI AMD/ATI R9 270X GAMING 2G 2 GB GDDR5 Graphic card
M5A99FX PRO R2.0 Motherboard
BenQ GW2255 21.5 inch LED Backlit LCD Monitor
G.Skill RipjawsX DDR3 8 GB (1 x 8 GB) PC (F3-12800CL10S-8GBXL)
Circle CC830 Full Tower Cabinet (Black)
This is my first build and I want to be 100% sure...so Please help me

 

[Dark Lord of Tech]

Both Made by SEASONIC.

PCPartPicker part list / Price breakdown by merchant

Power Supply: Antec High Current Gamer 620W 80+ Bronze Certified Semi-Modular ATX Power Supply ($48.00 @ Newegg)
Total: $48.00
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2015-02-07 00:35 EST-0500


or


PCPartPicker part list / Price breakdown by merchant

Power Supply: XFX 550W 80+ Bronze Certified ATX Power Supply ($43.99 @ SuperBiiz)
Total: $43.99
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2015-02-07 00:38 EST-0500

 

[i7Baby]

RealHardTech says you need a good 500W power supply - per tiers 1, 2a or 2b of http://www.tomshardware.com/answers/id-1804779/power-supply-unit-tier-list.html eg

xfx 550 - $44 - http://pcpartpicker.com/part/xfx-power-supply-p1550sxxb9

Seasonic S12II 520 - $57 - http://pcpartpicker.com/part/seasonic-power-supply-s12ii520bronze

Antec HCG 520M - $55 - http://pcpartpicker.com/part/antec-power-supply-hcg520m