Im not sure what Wattage power supply I should get

Specarooni

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Dec 16, 2014
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According to this site which calculates what wattage supply you should get It is ~378Watts: http://coolermaster.outervision.com/PSUEngine2
Its just that it seems a little low and after digging around the internet a lot of people recommend 600W supplies so I thought I would ask the community, what Wattage power supply should I get if for a FX 6300, r9 270, 1TB hard drive and 1 stick 8GB ram. Thank you in advance