Rock Band 4 GPU Analysis
Comparing Rock Band 4 PC system requirements to all GPUs shows that Rock Band 4 is going to need a graphics card that is capable of DX 9 or OpenGL 4.1.
Rock Band 4 makes use of DX11 so a GPU with that capability could benefit from enhanced visuals.
To get the best visual graphical experience on Rock Band 4, aim to have a GPU that has at least 4 MB GPU RAM.
Medium level graphics cards currently available today, will probably allow you to play Rock Band 4
We are advised that 8 year old graphics cards should be able to run Rock Band 4. 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 Rock Band 4 graphics card requirements chart below.