Intel Core i7 9800X's Advantages
Higher base frequency (3.8GHz vs 2.1GHz)
Intel Core i7 14700F's Advantages
Released 5 years and 3 months late
Higher specification of memory (DDR5-5600 vs DDR4-2666)
Larger memory bandwidth (89.6GB/s vs 79.47GB/s)
Newer PCIe version (5.0 vs 3.0)
Larger L3 cache size (33MB vs 17MB)
More modern manufacturing process (10nm vs 14nm)
Lower TDP (65W vs 165W)