Hi,
Check out: http://www.amd.com/us/products/embedded/graphics-processors/Pages/radeon-e6760-discrete-gpu.aspx
This is a discrete embedded GPU from AMD which has large number of cores and is opencl compliant.
As of Zacate, I don't think there are any compromises as they would be supporting the full opencl 1.1 spec rather than the embedded version.