Apple M1 Ultra 's Advantages
Released 1 years and 8 months late
Integrated graphics card
Higher specification of memory (LPDDR5-6400 vs DDR4-3200)
Larger memory bandwidth (800GB/s vs 47.68GB/s)
Lower TDP (60W vs 105W)
AMD Ryzen 9 3900XT 's Advantages
Higher base frequency (3.8GHz vs 3.2GHz)