Intel Core i5 5200U 's Advantages
Lower TDP (15W vs 55W)
Intel Core i5 12600HX 's Advantages
Released 7 years and 4 months late
Higher specification of memory (4800 vs 1600)
Larger memory bandwidth (76.8GB/s vs 25.6GB/s)
Newer PCIe version (5.0 vs 2.0)
Higher base frequency (2.5GHz vs 2.2GHz)
Larger L3 cache size (18MB vs 3MB)
More modern manufacturing process (10nm vs 14nm)