AMD Ryzen 9 3900X 's Advantages
Higher base frequency (3.8GHz vs 3.0GHz)
Larger L3 cache size (64MB vs 20MB)
More modern manufacturing process (7nm vs 10nm)
Intel Core i5 12490F 's Advantages
Released 2 years and 6 months late
Higher specification of memory (4800 vs 3200)
Larger memory bandwidth (76.8GB/s vs 47.68GB/s)
Newer PCIe version (5.0 vs 4.0)
Lower TDP (65W vs 105W)