AMD Ryzen 5 PRO 8640U's Advantages
Released 1 years and 3 months late
Lower TDP (28W vs 35W)
AMD Ryzen 7 7840HS's Advantages
Integrated graphics card
Higher specification of memory (LPDDR5x-7500 vs DDR5-5600)
Newer PCIe version (4.0 vs 4)
Higher base frequency (3.8GHz vs 3.5GHz)