Nodes 3D model refers to a model built with a node-based workflow (using visual nodes to connect elements like materials or geometry), while a 3ds Max 3D model is created in Autodesk 3ds Max (software that supports both node-based and traditional editing).
Node-based models use modular, graph-driven relationships—great for flexible, non-destructive edits. 3ds Max models tie to the software’s tools (e.g., Editable Poly, Slate Material Editor) and save in .max format. The core difference: "nodes" is a workflow method, while "3ds Max" is a specific software for creating models.
If you’re new to 3D, try 3ds Max’s node-based Material Editor—it’s a practical way to learn how node workflows function in a common tool.