I don’t know much about GPUs but I know my MBP M1 run gpu intensive task almost as good as my previous MBP 16 with dedicated graphics that cost twice as much. My video editing export is not too far off and that process uses GPU. I don’t do gaming so I can not comment on that. However most people uses Mac laptop for creative stuff and to me looks like the M1 is shaming lot of very expensive laptops with GPUs that are very new in release.