The memory allows more data to be stored for the gpu to process. The gpu processors the data to be rendered. The bit size is the amount of data that can travel between the ram and the gpu, the higher the bit size the data can be send for processing.
It s basically similar to a computer.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.