As a comparison, Archicad 24 needs an OpenGL 4.0-compatible graphics card, so any computer that runs Archicad should also be able to run BIMx Desktop Viewer.
Loving Archicad since 1995 - Find Archicad Tips at x.com/laszlonagy AMD Ryzen9 5900X CPU, 64 GB RAM 3600 MHz, Nvidia GTX 1060 6GB, 500 GB NVMe SSD 2x28" (2560x1440), Windows 10 PRO ENG, Ac20-Ac28