AMD Ryzen 5 3450U 's Advantages
Better graphics card performance
AMD Ryzen 5 7520U 's Advantages
Released 2 years and 8 months late
Higher specification of memory (5500 vs 2400)
Larger memory bandwidth (44.0GB/s vs 38.4GB/s)
Higher base frequency (2.8GHz vs 2.1GHz)
More modern manufacturing process (6nm vs 12nm)
Lower TDP (15W vs 35W)