AMD Ryzen 7 1700 's Advantages
Lower TDP (65W vs 120W)
AMD Ryzen 9 9900X 's Advantages
Released 7 years and 3 months late
Integrated graphics card
Higher specification of memory (DDR5-5600 vs DDR4-2666)
Larger memory bandwidth (89.6GB/s vs 39.74GB/s)
Newer PCIe version (5.0 vs 3.0)
Higher base frequency (4.4GHz vs 3.0GHz)
Larger L3 cache size (64MB vs 16MB)