AMD Ryzen 7 3700X 's Advantages
Higher base frequency (3.6GHz vs 3.4GHz)
Larger L3 cache size (32MB vs 8MB)
AMD Ryzen 3 8300G 's Advantages
Released 4 years and 6 months late
Integrated graphics card
Higher specification of memory (5200 vs 3200)
Larger memory bandwidth (83.2GB/s vs 47.68GB/s)
More modern manufacturing process (4nm vs 7nm)