AMD Ryzen 9 9900X 's Advantages
Released 10 years and 7 months late
Higher specification of memory (5600 vs 1333)
Larger memory bandwidth (89.6GB/s vs 21.3GB/s)
Newer PCIe version (5.0 vs 2.0)
Higher base frequency (4.4GHz vs 2.0GHz)
More modern manufacturing process (4nm vs 22nm)
Intel Celeron J1900 's Advantages
Lower TDP (10W vs 120W)