Intel Celeron J1900 's Advantages
Integrated graphics card
Lower TDP (10W vs 65W)
Intel Core i5 9400F 's Advantages
Released 5 years and 2 months late
Higher specification of memory (2666 vs 1333)
Larger memory bandwidth (41.6GB/s vs 21.3GB/s)
Newer PCIe version (3.0 vs 2.0)
Higher base frequency (2.9GHz vs 2.0GHz)
More modern manufacturing process (14nm vs 22nm)