Intel Core i9 12900T 's Advantages
Lower TDP (35W vs 125W)
Intel Core i9 13900K 's Advantages
Released 8 months late
Higher specification of memory (5600 vs 4800)
Larger memory bandwidth (89.6GB/s vs 76.8GB/s)
Newer PCIe version (5.0 vs 5)
Higher base frequency (3.0GHz vs 1.4GHz)
Larger L3 cache size (36MB vs 30MB)