I am software engineer.  I read through the documentation that Geekbench provides on there testing methodology.  They basically use off the shelve open source libraries to do 90% of there benchmark.  They test just about any task you can do with a computer cpu, and provide a composite result.  But you can drill down and look at each individual category.

This is perfectly valid.  If anything it's unfair to the iPhone.  The iPhone includes Functionality that Intel and AMD don't include in their CPUs. The CPU benchmark alone doesn't represent how powerful the A Series processors are. They have image processor similar to a DSLR, audio dsps, they have a AI engine and none of these are tested by Geekbench.  The A Series processors have an IO processor for every source of input or output available.  A lot of stuff the X86 would handle on its own is handed off to a separate dedicated processor. 

I tend to hate on Apple for there prices, but the A series processors are that powerful. 

To know how bad intel is, just look at the Ryzen 4000 laptops using TSMC's 7nm process.  35watt units were beating Intel systems that were allowed to use 90Watts!  A 7 watt part on the bleeding edge TSMC fab could absolutely beat an Intel 45 watt part!  And Apple A series are always a node ahead of AMD. 

Indeed time for the Macs to move to ARM.