AMD Ryzen 5 3450U 's Advantages
Lower TDP (12W vs 15W)
AMD Ryzen 3 7440U 's Advantages
Released 3 years and 9 months late
Better graphics card performance
Higher specification of memory (LPDDR5x-7500 vs DDR4-2400)
Newer PCIe version (4.0 vs 3.0)
Higher base frequency (3.5GHz vs 2.1GHz)
Larger L3 cache size (8MB vs 4MB)
More modern manufacturing process (4nm vs 12nm)