How much power do i really need?

Davidc9998

Honorable
Aug 18, 2013
1
0
10,510
so i went on the asus calculator and it says i need about 600w of power but when i went to the newegg calculator it said i needed 400w. how much do i really need i dont wana overpay and i wana save money. specs

cpu- FX-6300 3.5 (stock clock) http://www.newegg.com/Product/Product.aspx?Item=N82E16819113286

Amd 7850 2GB http://www.newegg.com/Product/Product.aspx?Item=N82E16814131473

ASROCK 960GM MOBO http://www.newegg.com/Product/Product.aspx?Item=N82E16813157323

ADATA 4GB XPG GAMING Ram http://www.newegg.com/Product/Product.aspx?Item=N82E16820211409

NZXT Source 220 http://www.newegg.com/Product/Product.aspx?Item=N82E16811146083

WD T1 TB HDD http://www.newegg.com/Product/Product.aspx?Item=N82E16822236070

Calculators i used
http://images10.newegg.com/BizIntell/tool/psucalc/index.html - 400w i need

http://support.asus.com/powersupply.aspx - 500w i need