Apple M4 's Advantages
Released 3 years and 6 months late
Better graphics card performance
Higher specification of memory (LPDDR5X-7500 vs LPDDR4X-4266)
Larger memory bandwidth (120GB/s vs 68.25GB/s)
Higher base frequency (4.05GHz vs 2.1GHz)
More modern manufacturing process (3nm vs 5nm)
Apple M1 's Advantages
Lower TDP (14W vs 20W)