Recommend a Psu for this build

[Minura75]

Hey guys im building a low end computer to mostly play Browser 3d (unity) games and some modern titles like bf4 and Dayz on low settings with playable framerates. (Before you go ahead and start suggesting me with buy this buy that.....im sorry.....i know its not gonna perform brilliantly but im allready decided on the build). The only problem is that im not sure about the PSU. I tried the Cpu wattage calculator things online, it said a minimum of 273W is used for this build. Im not entirely sure about this calculation. So please suggest a correct wattage for my build.
Heres the build.

Processor - Pentium g3220 3.0ghz (4th gen)
Vga - Hd7770 (Sapphire radeon r7 250x)
Mobo - Msi h81 - p33
Ram - 4Gb DDR3 1333mhz
Storage - Western digital 500gb 7200rpm

Please help me out guys. (i dont want an overkill Psu either guys)
Thanks in advance

 

[Dark Lord of Tech]

Made by the best SEASONIC.

PCPartPicker part list / Price breakdown by merchant / Benchmarks

Power Supply: XFX 550W 80+ Bronze Certified ATX Power Supply ($49.99 @ NCIX US)
Total: $49.99
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2014-04-24 15:43 EDT-0400)


Or if your on a budget one of these 2

PCPartPicker part list / Price breakdown by merchant / Benchmarks

Power Supply: EVGA 500W 80+ Bronze Certified ATX Power Supply ($34.99 @ Micro Center)
Total: $34.99
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2014-04-24 15:44 EDT-0400)

or

PCPartPicker part list / Price breakdown by merchant / Benchmarks

Power Supply: Corsair Builder 430W 80+ Bronze Certified ATX Power Supply ($19.99 @ Newegg)
Total: $19.99
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2014-04-24 15:47 EDT-0400)

 

[nastycocopop]

should be okay with an 80+ certified 500w psu dude

 

[rolli59]

One thread should be enough for the same question http://www.tomshardware.com/answers/id-2118296/recomend-minimum-psu-build.html