Yeah with most laptops that even have a dedicated graphics card on board, you can't swap it out as they are soldered onto the motherboard. In those cases your only hope is to find a motherboard/GPU combo for your exact model on eBay, and that is extremely remote in chance. You might be able to buy an external USB connected graphics card solution (eGPU) but those cost what a new laptop would if your laptop is even on their compatibility test.