Intel Core i3 9300 's Advantages
Integrated graphics card
Lower TDP (62W vs 65W)
AMD Ryzen 5 8400F 's Advantages
Released 5 years and 1 months late
Higher specification of memory (5200 vs 2400)
Larger memory bandwidth (83.2GB/s vs 37.5GB/s)
Newer PCIe version (4.0 vs 3.0)
Higher base frequency (4.2GHz vs 3.7GHz)
Larger L3 cache size (16MB vs 8MB)
More modern manufacturing process (4nm vs 14nm)