Intel Core i9 11900's Advantages
Higher base frequency (2.5GHz vs 2.1GHz)
Intel Core i7 12700's Advantages
Released 10 months late
Better graphics card performance
Higher specification of memory (DDR5-4800 vs DDR4-3200)
Larger memory bandwidth (76.8GB/s vs 50GB/s)
Newer PCIe version (5.0 vs 4.0)
Larger L3 cache size (25MB vs 16MB)
More modern manufacturing process (10nm vs 14nm)