Intel Core i5 6600K 's Advantages
Integrated graphics card
Lower TDP (91W vs 105W)
AMD Ryzen 9 5900X 's Advantages
Released 5 years and 2 months late
Higher specification of memory (3200 vs 2133)
Larger memory bandwidth (47.68GB/s vs 34.1GB/s)
Newer PCIe version (4.0 vs 3.0)
Higher base frequency (3.7GHz vs 3.5GHz)
Larger L3 cache size (64MB vs 6MB)
More modern manufacturing process (7nm vs 14nm)