Apple M4 's Advantages
Released 1 years late
Higher specification of memory (LPDDR5X-7500 vs LPDDR5-6400)
Higher base frequency (4.05GHz vs 3.5GHz)
More modern manufacturing process (3nm vs 5nm)
Lower TDP (20W vs 60W)
Apple M2 Ultra 's Advantages
Larger memory bandwidth (800GB/s vs 120GB/s)