Apple is working towards releasing in-house silicon with up to 40 CPU and 128 GPU cores, Mark Gurman claims. The powerhouse SoC will make its way into a smaller Mac Pro, while the Mac mini will receive a chip with up to 32 GPU cores.
https://www.notebookcheck.net/Apple-is-reputedly-developing-a-Mac-Pro-with-up-to-40-CPU-and-128-GPU-cores-new-Mac-mini-with-powerful-SoC-being-worked-on-too.539981.0.html