AMD's OpenCL support on GPU is overall excellent in my experience (2x commercial apps and lots of hobby code), but I tend to mostly use low level OpenCL 1.1 stuff, which I find sufficient.
Also Intel GPUs are actually incredibly competent with OpenCL if you give them wide enough NDrange, and somehow try to look past lack of any fp64 support at all :/
Also Intel GPUs are actually incredibly competent with OpenCL if you give them wide enough NDrange, and somehow try to look past lack of any fp64 support at all :/