"supports it native to the chip" native? and if ur gonna say native resolution whats that?
Native to the chipset means AMD or Intel built the capability into the chipset to support sata 6gb/s.
Lots of previous generation motherboards had sata 6gb/s implemented by the motherboard maker. They use a chip that takes unused pci-e lanes and puts two 2.5gb/s links together for a 5gb/s link and advertise it as sata 6gb/s. But they didn't expect ssd technology to push 6gb/s to the limit so soon so their 5gb/s link runs slower not only because it's only 5gb/s but because the info is split between two ports to do it.