Halo 3 GPU Analysis
Comparing Halo 3 PC system requirements to all GPUs shows that Halo 3 is going to need a graphics card that is capable of OpenGL 4.1.
To get the best visual graphical experience on Halo 3, aim to have a GPU that has at least 1GB GPU RAM.
Medium level graphics cards currently available today, will probably allow you to play Halo 3
We are advised that 10 year old graphics cards should be able to run Halo 3, 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 Halo 3 graphics card requirements chart below.