Intel Core i3 9100 's Advantages
Lower TDP (65W vs 120W)
AMD Ryzen 9 7900X3D 's Advantages
Released 3 years and 9 months late
Better graphics card performance
Higher specification of memory (DDR5-5200 vs DDR4-2400)
Larger memory bandwidth (83.2GB/s vs 37.5GB/s)
Newer PCIe version (5.0 vs 3.0)
Higher base frequency (4.4GHz vs 3.6GHz)
Larger L3 cache size (128MB vs 6MB)