My personal impressions from M1 8/256 and M1 16/1Tb: the one with bigger RAM size is snappier. And in case of RAM hungry tasks it will help to reduce memory swap thus saving some life to SSD. If you are in DAW, VST, video editing - go with 16. AS for M2 - never buy base model! he base model for everyone must be 8/512 and not 8/256! 8/256 configuration of M2 is very slow when copying files as 256 GB SSD is the slow one.