Intel Core i9 7900X 's Advantages
Larger memory bandwidth (79.47GB/s vs 50GB/s)
Intel Core i7 11700K 's Advantages
Released 3 years and 10 months late
Integrated graphics card
Higher specification of memory (DDR4-3200 vs DDR4-2666)
Newer PCIe version (4.0 vs 3.0)
Higher base frequency (3.6GHz vs 3.3GHz)
Larger L3 cache size (16MB vs 14MB)
Lower TDP (125W vs 140W)