Intel Core i9 7900X 's Advantages
Larger memory bandwidth (79.47GB/s vs 76.8GB/s)
Higher base frequency (3.3GHz vs 2GHz)
Intel Core i5 12500T 's Advantages
Released 4 years and 8 months late
Integrated graphics card
Higher specification of memory (4800 vs 2666)
Newer PCIe version (5 vs 3.0)
Larger L3 cache size (18MB vs 14MB)
More modern manufacturing process (10nm vs 14nm)
Lower TDP (35W vs 140W)