Intel Core i9 9900K 's Advantages
Lower TDP (95W vs 170W)
AMD Ryzen 9 7900X 's Advantages
Released 3 years and 11 months late
Higher specification of memory (DDR5-5200 vs DDR4-2666)
Larger memory bandwidth (83.2GB/s vs 41.6GB/s)
Newer PCIe version (5.0 vs 3.0)
Higher base frequency (4.7GHz vs 3.6GHz)
Larger L3 cache size (64MB vs 16MB)