3D design and modeling of architectural models in CAD software like Revit or 3ds Max is predominantly single-threaded. This process benefits from a CPU with higher clock speeds.
Virtual Reality relies on game engine technology that has traditionally been used to author AAA video games. High-end graphics capability is essential for a seamless VR experience. Frame rates need to be at least 90 fps. Currently this can only be achieved with high-end professional cards or consumer gaming cards designed to deliver maximum frame rates.