Intel Core i9 9940X 's Advantages
Larger memory bandwidth (85GB/s vs 45.8GB/s)
Higher base frequency (3.3GHz vs 1.9GHz)
Intel Core i9 10900T 's Advantages
Released 1 years and 7 months late
Integrated graphics card
Higher specification of memory (DDR4-2933 vs DDR4-2666)
Lower TDP (35W vs 165W)