AMD Ryzen 3 1300X 's Advantages
Higher base frequency (3.5GHz vs 3.3GHz)
Lower TDP (65W vs 105W)
AMD Ryzen 9 5900XT 's Advantages
Released 7 years late
Higher specification of memory (3200 vs 2666)
Larger memory bandwidth (47.68GB/s vs 39.74GB/s)
Newer PCIe version (4 vs 3.0)
Larger L3 cache size (64MB vs 8MB)
More modern manufacturing process (7nm vs 14nm)