Nethack GPU Analysis
Comparing Nethack PC system requirements to all GPUs shows that Nethack is going to need a graphics card that is capable of OpenGL 1.5.
Nethack makes use of DX 9.00 so a GPU with that capability could benefit from enhanced visuals.
To get the best visual graphical experience on Nethack, aim to have a GPU that has at least 0MB GPU RAM.
Most bottom end graphics cards currently available today, will probably allow you to play Nethack
We are advised that 18 year old graphics cards should be able to run Nethack, 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 Nethack graphics card requirements chart below.