AMD Ryzen 3 4300U 's Advantages
Higher base frequency (2.7GHz vs 1.1GHz)
Intel Core i5 1240U 's Advantages
Released 2 years and 1 months late
Higher specification of memory (LPDDR5-5200 vs LPDDR4-4266)
Larger memory bandwidth (76.8GB/s vs 68.27GB/s)
Newer PCIe version (4.0 vs 3.0)
Larger L3 cache size (12MB vs 4MB)
Lower TDP (9W vs 10W)