AMD Ryzen 5 1500X 's Advantages
Higher base frequency (3.5GHz vs 2.8GHz)
Larger L3 cache size (16MB vs 4MB)
AMD Ryzen 5 7520U 's Advantages
Released 5 years and 5 months late
Integrated graphics card
Higher specification of memory (LPDDR5-5500 vs DDR4-2666)
Larger memory bandwidth (44.0GB/s vs 39.74GB/s)
More modern manufacturing process (6nm vs 14nm)
Lower TDP (15W vs 65W)