Hey, just got a slight warning from the C-Zone guy about using Corsair VS550 550W PSU when I bought their MSI RX 470 8GB. They told me about 'true power' vs 'extreme power' which I don't quite comprehend, though sites like techpowerup forums and most PSU calculator show that using a VS550 is enough for a RX 470. I knew the risk of VS 550 not having a good capacitor and a low tier PSU(not even bronze rated), but if I'm not going over 400W usage why is VS550 a compromise when having the MSI RX 470 8gb?