yeah I didnt post on this issue because I do agree its been overhyped but at the same time card vendors are been too aggressive on their power claims even having inadequate psu cable connectivity to try and enforce that claim, these amd cards should be using 2 pci-e power cables not one, and the third party vendors do indeed have two not one. Some nvidia cards have the same issue such as the 750 ti and gtx 960.
The advice on a cheap motherboard is good, but I would also advise do not buy reference gpu models, get an after market card. This includes nvidia's overhyped founders edition cards, they are basically just reference cards, avoid them. A 480 from someone like asus has 2 external pci-e power connectors so it wont over draw from the motherboard pci-e slot.