AMD Ryzen 9 6900HS's Advantages
Lower TDP (35W vs 35W)
AMD Ryzen 7 8845HS's Advantages
Released 1 years and 11 months late
Better graphics card performance
Higher specification of memory (LPDDR5x-7500 vs LPDDR5-6400)
Larger memory bandwidth (89.6GB/s vs 76.8GB/s)
Higher base frequency (3.8GHz vs 3.3GHz)