AMD Ryzen 5 PRO 8645HS 's Advantages
Released 3 years and 3 months late
Newer PCIe version (4 vs 3.0)
Higher base frequency (4.3GHz vs 3.3GHz)
AMD Ryzen 9 5980HX 's Advantages
Integrated graphics card
Higher specification of memory (LPDDR4-4266 vs DDR5-5600)
Lower TDP (35W vs 45W)