While some users previously preferred Windows for NVIDIA-only CUDA support, the shift to and the introduction of the Metal RT engine has made the Mac a formidable platform for high-end rendering. You can achieve photorealistic results without needing to switch operating systems or use virtualization software like Parallels, which can degrade performance. Vray Rendering with iMac M4 - V-Ray for SketchUp
The pricing for V-Ray for SketchUp varies depending on the license type and subscription plan: vray for sketchup mac os