Intel Celeron J1900 's Advantages
Integrated graphics card
Lower TDP (10W vs 140W)
Intel Core i9 7900X 's Advantages
Released 3 years and 6 months late
Higher specification of memory (2666 vs 1333)
Larger memory bandwidth (79.47GB/s vs 21.3GB/s)
Newer PCIe version (3.0 vs 2.0)
Higher base frequency (3.3GHz vs 2.0GHz)
More modern manufacturing process (14nm vs 22nm)