550 vs 570 for amd build

So, I've looked at the diagrams for the 550 and 570 AMD motherboards. Feature sets seem quite similar, I know there are issues with PCI lanes coming from chipset or cpu, I think. But what does it all mean? Can someone tl/dr the practical differences between the 550 and 570 motherboards from a hackintosh standpoint for me?

Thanks for helping