Intel Core i3 9100 's Advantages
Lower TDP (65W vs 120W)
AMD Ryzen 9 9900X3D 's Advantages
Released 5 years and 5 months late
Higher specification of memory (5600 vs 2400)
Larger memory bandwidth (89.6GB/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)
More modern manufacturing process (4nm vs 14nm)