Intel Core i7 6950X 's Advantages
Higher base frequency (3.0GHz vs 1.8GHz)
Larger L3 cache size (25MB vs 18MB)
Intel Core i5 12400T 's Advantages
Released 5 years and 8 months late
Integrated graphics card
Higher specification of memory (4800 vs 2133)
Newer PCIe version (5 vs 3.0)
More modern manufacturing process (10nm vs 14nm)
Lower TDP (35W vs 140W)