Intel Celeron J1900 's Advantages
Lower TDP (10W vs 125W)
Intel Core i5 12600K 's Advantages
Released 7 years and 11 months late
Better graphics card performance
Higher specification of memory (4800 vs 1333)
Larger memory bandwidth (76.8GB/s vs 21.3GB/s)
Newer PCIe version (5.0 vs 2.0)
Higher base frequency (3.7GHz vs 2.0GHz)
More modern manufacturing process (10nm vs 22nm)