Unlike traditional PCs where RAM and VRAM are separate, Apple's unified memory allows the GPU to access the same high-speed pool of RAM as the CPU, which is particularly beneficial for 4K and 8K workflows.

In the Video tab of the export settings, look for "Encoding."

Premiere Pro on Mac is a professional powerhouse. By respecting the hardware limitations of your specific Mac model, managing your cache aggressively, and utilizing the native color management features, you can achieve a fluid, high-end editing workflow that rivals any production studio.