In summary, you are full of crap if you think an untuned blind geekbench score is what you're going by - an aggregation of a whole bunch of tests, using defaults. My statement is true, as I kick off the same data processing script on my laptop and it finishes it over lunch, while my coworker kicks it off overnight.
> Xeon with a greater TDP than 45w
yes, the Xeon W-11955M in the Dell is 45W. Now add the RTX GPU - which coincidentally will be doing most of the work. Unless you're running the geekbench test you're referring to, to purposely gimp the results. That Intel integrated graphics chip uses almost no power.
go process a large dataset and do some calculations on it. Run a bunch of VMs while you're doing it to - let's say 3. Give each one 32G of memory. Better be ECC memory too, or your data won't be reliable. Maybe in about 5 years when apple catches up to the current pro laptops, you'll be able to. This is why all the m1 comparisons they do is to previous generation intel chips in their old laptops. which have always been slow. apple has always used outdated hardware, in everything they've ever made.