Napoleon: Total War GPU Analysis
Comparing Napoleon: Total War PC system requirements to all GPUs shows that Napoleon: Total War is going to need a graphics card that is capable of OpenGL 1.5.

To get the best visual graphical experience on Napoleon: Total War, aim to have a GPU that has at least 256MB GPU RAM.

Most bottom end graphics cards currently available today, will probably allow you to play Napoleon: Total War

We are advised that 19 year old graphics cards should be able to run Napoleon: Total War, but there could be a few exceptions to this rule.

Note that most games do not officially support laptop graphics cards, but nowadays many laptop graphics solutions are capable of running modern games. Whether desktop graphics cards or laptop, try searching for your graphics card to compare against the Napoleon: Total War graphics card requirements chart below.