Intel Core i5 8257U 's Advantages
Lower TDP (15W vs 60W)
Apple M2 Ultra 's Advantages
Released 3 years and 10 months late
Higher specification of memory (LPDDR5-6400 vs DDR4-2400)
Larger memory bandwidth (800GB/s vs 37.5GB/s)
Newer PCIe version (4.0 vs 3.0)
Higher base frequency (3.5GHz vs 1.4GHz)