Diablo III GPU Analysis
Comparing Diablo III PC system requirements to all GPUs shows that Diablo III is going to need a graphics card that is capable of OpenGL 2.1.

To get the best visual graphical experience on Diablo III, aim to have a GPU that has at least 512MB GPU RAM.

Most bottom end graphics cards currently available today, will probably allow you to play Diablo III

We are advised that 14 year old graphics cards should be able to run Diablo III, 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 Diablo III graphics card requirements chart below.