Check this tutorial about the latest version of Cinema 4D with Jonaz Pilz, shows how to get started with ProRender.
Enter into the world of GPU rendering regardless of your platform.
Cinema 4D Release 19 introduces the first steps of integration with AMD ProRender, the new workflows that this GPU/CPU based render engine create. You can see your changes in materials, lighting, and even layout rendered directly in the viewport with the progressive path traced render.
With ProRender you can use the power of the GPU, the graphics card both AMD Radeon and NVDIA.
How to get started with ProRender in Cinema 4D Release 19