Intel Core i5 12600K 's Advantages
Integrated graphics card
Newer PCIe version (5.0 vs 4)
Higher base frequency (3.7GHz vs 1.7GHz)
Larger L3 cache size (20MB vs 18MB)
Intel Core Ultra 5 135HL 's Advantages
Released 2 years and 6 months late
Higher specification of memory (5600 vs 4800)
Larger memory bandwidth (89.6GB/s vs 76.8GB/s)
More modern manufacturing process (7nm vs 10nm)
Lower TDP (45W vs 125W)