NVIDIA Releases CUDA 6.5 As A Huge Update

[Sdar]

Ok.
HSA? but aren't APUs slower than dedicated big GPU cards?

Yes, but AMD OPENCL have huge performance drops with large Opencl kernels (If it's too large it will fail to compile, but it'll work with Intel and nvidia Opencl).

it's a known bug reported ~3 years ago that has not been fixed yet even when they said it's a high priority.