Intel Core i9 7900X 's Advantages
Higher specification of memory (2666 vs 2400)
Larger memory bandwidth (79.47GB/s vs 37.5GB/s)
Higher base frequency (3.3GHz vs 3.1GHz)
Larger L3 cache size (14MB vs 2MB)
Intel Celeron G4900 's Advantages
Released 11 months late
Integrated graphics card
Lower TDP (54W vs 140W)