This. I just did a comparison between my MacBook Pro Early 2015 to MacBook Air M4 Early 2025.

*Intel Core i5-5287U*: - *Single-Core Maximum Wattage*: ~7-12W - *Process Node*: 14nm - *GB6 Single Core *: ~950

- *Apple M4*: - *Single-Core Maximum Wattage*: ~4-6W - *Process Node*: 3nm - *GB6 Single Core *: ~3600

Intel 14nm = TSMC 10nm > 7nm > 5nm > 3nm

In 10 years, we got ~3.5x Single Core performance at ~50% Wattage. i.e 7x Performance per Watt with 3 Node Generation improvements.

In terms of Multi Core we got 20x Performance per Watt.

I guess that is not too bad depending on how you look at it. Had we compared it to x86 Intel or AMD it would have been worst. I hope M5 have something new.