Intel Core i7 12700KF 's Advantages
Released 7 years and 11 months late
Higher specification of memory (DDR5-4800 vs DDR3L-1333)
Larger memory bandwidth (76.8GB/s vs 21.3GB/s)
Newer PCIe version (5.0 vs 2.0)
Higher base frequency (3.6GHz vs 2.0GHz)
More modern manufacturing process (10nm vs 22nm)
Intel Celeron J1900 's Advantages
Integrated graphics card
Lower TDP (10W vs 125W)