CUDA C++, CUDA Fortran, CUDA Anything PTX, plus libraries, IDE integration, GPU graphical debugging.
Coupled with Khronos, Intel, AMD never delivering anything comparable with OpenCL, Apple losing interest after Khronos didn't took OpenCL into the direction they wanted, Google never adopting it favouring their Renderscript dialect.
Coupled with Khronos, Intel, AMD never delivering anything comparable with OpenCL, Apple losing interest after Khronos didn't took OpenCL into the direction they wanted, Google never adopting it favouring their Renderscript dialect.