Welcome back to Hexus - we do like people to do a bit of research sometimes before answering, though we all get things wrong from time to time - I certainly do!
AMD created things like tressFX and released that for everyone to use and take advantage of. Global illumination, forward rendering etc. could also be included. Then we could talk about Mantle, resulting in Vulkan and providing a big push for DX12 - kind of handy no?
But since you talk of AA, do you know where FXAA comes from? AMD's morphological AA, or MLAA.
Unlike nVidia, when AMD do research things, they always do get released.