looking for a good psu for gaming needs

mohit2545

Distinguished
May 18, 2013
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i currently have these specs:
amd sempron 145 2.8 ghz
msi 760gm p33 mobo
2 gb ddr3 ram*1
amd radeon hd 5450 2gb powercolour edition
some 250W local psu.it worked for me for the last 2 years without any problems and is still running fine.
but now im gonna upgrade my pc.im gonna upgrade to this:
amd fx 6100 3.3ghz
Gigabyte GA-78LMT-S2 Motherboard or ASUS M5A78L-M LX V2 Motherboard or Gigabyte GA-78LMT-USB3 Motherboard.
amd radeon hd 5450 2gb powercolour edition.
4gb ddr3 ram.
im thinking of getting Corsair VS650 650 Watt PSU.will it be enough for my needs for hardcore gaming or is it ok if i get some other psu of 400-500W?