I still have hope for AMD cards considering DX12 absorbed mantle technologies
AMD is stopping effort in mantle for now, they are putting their resources into vulkan.....
Vulkan and DX12 objectives are the same, low level API, further dividing the workload of render or compute into even smaller, granular sub task, and then redistributing GPU CPU resources, and balancing it so that there are fewer used resource.... Machiam like chopped meat and mince meat, chop meat cannot control the weight precisely unlike mince meat.....
DX 12 is closed source, proprietary anyway, AMD cannot use any of DX12 tech and not get sued.....