I really don't suggest you go with a laptop for 3ds max and rendering. Rendering is really CPU intensive even gaming laptops will throttle hard when you start to render for long periods of time. On top of that mobile CPU's are inferior to desktop cpus lacking cores , threads and clock speed. You will be better served by a desktop and it will probably cost you less money for comparable spec system ( aside from current gpu prices ). Let us know your budget and we can suggest something to get you going.