AMD Ryzen 7 7700X 's Advantages
Newer PCIe version (5.0 vs 4.0)
Higher base frequency (4.5GHz vs 4.3GHz)
Larger L3 cache size (32MB vs 16MB)
AMD Ryzen 7 8700G 's Advantages
Released 1 years and 4 months late
More modern manufacturing process (4nm vs 5nm)
Lower TDP (65W vs 105W)