BTW, there is rule of thumb, which gives balanced memory/cores scenario: 4-8GB per core. on general average workload, this means you have enough data for cores to digest, and enough cores to digest data balanced average case.
It used to be 4 for quite some time, now, with eventual speed-up of cores it is moving towards 8.
Again, this is _average_. Of course you can have case me where 64 cores will have enough to do with 2 MB of data, and cases where one core is enough for processing 64GB. But on average, it is quite good rule of thumb.
So you’re basically saying you need from 40 to 80Gb RAM with these new MacBooks? I honestly don’t think this rule is good, unless you’re running VMs and are allocating separate resources.
Here’s a rule of thumb: open all of the apps you use in your workflow, see if your current computer is slow more than you expect it to be, in regards to your CPU and GPU (eliminate the CPU and GPU as bottlenecks first). If it is, in that case you might need more RAM. Get the new computer with that in mind. Or just buy the most you can comfortably afford - if you feel like it. That’s it.