AMD Ryzen 5 PRO 8540U 's Advantages
Higher base frequency (3.2GHz vs 3.0GHz)
Larger L3 cache size (16MB vs 8MB)
AMD Ryzen 3 8440U 's Advantages
Integrated graphics card
Higher specification of memory (LPDDR5x-7500 vs DDR5-5600)
Newer PCIe version (4.0 vs 4)
Lower TDP (15W vs 28W)