Video Editing. Backend and Frontend development utilizing docker containers. Just browsing the web with tons of tabs. Streaming video while doing other stuff in the background. Honestly most things I'd rather do on my M1.
So probably nothing that actually needs more than 16GB of RAM then. And realistically comparing M1 to an i7 several years older than it.
Having more RAM doesn't increase memory bandwidth and having more memory bandwidth doesn't necessarily mean better performance. You aren't even able to make use of all of the bandwidth your M1 is capable of in the real world [1].
Apple Silicon has good perf/watt but the gap probably isn't as big as you're thinking.
When did I say having more RAM increased memory bandwidth? Are you having a separate conversation with yourself right now? I feel like you might have misinterpreted what I originally said and just ran with it.