The graphics card in 3ds Max 2013 served a very specific purpose: accelerating the viewport. It did not (by default) help with final rendering. Autodesk certified two classes of GPUs: consumer gaming cards (like NVIDIA GeForce) and professional workstation cards (like NVIDIA Quadro or AMD FirePro). While a GeForce card worked fine for most users, the Quadro cards offered certified drivers and better OpenGL performance for wireframe manipulation. The requirement for DirectX 11 support was forward-looking, allowing artists to use the Nitrous viewport, which offered better shading, transparency, and texture display in real-time. A card with 1 GB of VRAM was the minimum for working with 4K textures; 2 GB was preferred.
Since official support for 3ds Max 2013 has ended, running it on modern operating systems can be tricky. Here are tips to get it working: 3ds max 2013 system requirements