AMD Ryzen 9 7940HS 's Advantages
Integrated graphics card
Higher specification of memory (LPDDR5x-7500 vs DDR5-5600)
Higher base frequency (4.0GHz vs 3.2GHz)
AMD Ryzen 5 PRO 8540U 's Advantages
Released 1 years and 3 months late
Newer PCIe version (4 vs 4.0)
Lower TDP (28W vs 35W)