AMD Ryzen 9 3900X 's Advantages
Released 9 months late
Higher specification of memory (DDR4-3200 vs DDR4-2666)
Larger memory bandwidth (47.68GB/s vs 41.6GB/s)
Newer PCIe version (4.0 vs 3.0)
Higher base frequency (3.8GHz vs 3.6GHz)
Larger L3 cache size (64MB vs 16MB)
Intel Core i9 9900K 's Advantages
Integrated graphics card
Lower TDP (95W vs 105W)