there is a key phrase you need to look for when buying a “laptop”
”mobile workstation” is what you should search for. These typically have standalone graphics cards that can handle Rhino. “laptops” often have only intel or amd on board graphics or even worse a snapdragon architecture all which are not good for rhino.
v9 will be more tolerant of parallels, snapdragon, intel and amd on board, etc as it will be D3d instead of open gl as default. but for now, you want a really dedicated graphics card with 4gb vram minimum for each monitor you want to connect.
see this thread-