Intel Core i9 12900T 's Advantages
Integrated graphics card
Higher specification of memory (4800 vs 3200)
Newer PCIe version (5 vs 4.0)
Lower TDP (35W vs 105W)
AMD Ryzen 7 5600X3D 's Advantages
Released 2 years late
Higher base frequency (3.3GHz vs 1.4GHz)
Larger L3 cache size (96MB vs 30MB)
More modern manufacturing process (7nm vs 10nm)