Intel Core i7 9800X 's Advantages
Higher base frequency (3.8GHz vs 3.2GHz)
Lower TDP (165W vs 350W)
AMD Ryzen Threadripper 7980X 's Advantages
Released 5 years late
Higher specification of memory (DDR5-5200 vs DDR4-2666)
Larger memory bandwidth (166.4GB/s vs 79.47GB/s)
Newer PCIe version (5 vs 3.0)
Larger L3 cache size (256MB vs 17MB)