Intel Core i9 13900 's Advantages
Better graphics card performance
Higher specification of memory (5600 vs 5200)
Larger memory bandwidth (89.6GB/s vs 83.2GB/s)
AMD Ryzen 9 7900 's Advantages
Higher base frequency (3.7GHz vs 2.0GHz)
Larger L3 cache size (64MB vs 36MB)
More modern manufacturing process (5nm vs 10nm)