On Mac laptops there's not much reason. You probably have an Nvidia GPU, which is still a bit faster than Intel ones and supports OpenCL. An upgrade would pro

On Mac laptops there's not much reason. You probably have an Nvidia GPU, which is still a bit faster than Intel ones and supports OpenCL. An upgrade would probably get you more max memory, and maybe twice the CPU performance, but it's not as amazing as a five year difference used to be.