Intel Core i7 7700T 's Advantages
Integrated graphics card
Lower TDP (35W vs 140W)
Intel Core i9 7900X 's Advantages
Higher specification of memory (DDR4-2666 vs DDR4-2400)
Larger memory bandwidth (79.47GB/s vs 38.4GB/s)
Higher base frequency (3.3GHz vs 2.9GHz)
Larger L3 cache size (14MB vs 8MB)