Intel Core i7 6950X Advantages
Larger memory bandwidth (76.8GB/s vs 41.6GB/s)
Larger L3 cache size (25MB vs 16MB)
Intel Core i9 9900 Advantages
Released 2 years and 11 months late
Integrated graphics card
Higher specification of memory (2666 vs 2133)
Higher base frequency (3.1GHz vs 3.0GHz)
Lower TDP (65W vs 140W)