Intel Core i9 9900X 's Advantages
Released 6 months late
Larger memory bandwidth (85GB/s vs 41.6GB/s)
Higher base frequency (3.5GHz vs 3.1GHz)
Larger L3 cache size (20MB vs 9MB)
Intel Core i5 8600 's Advantages
Integrated graphics card
Lower TDP (65W vs 165W)