I think Apple's chips aren't that far off being twice as fast as Exynos chips in single-core performance. Whereas the latest AMD and Intel chips are more or less on a par.

https://www.cpu-monkey.com/en/compare_cpu-apple_a14_bionic-v...

The A14 is a generation old at this point. This is a more relevant comparison:

https://www.cpu-monkey.com/en/compare_cpu-apple_a15_bionic_5...