AMD Ryzen 3 5300U 's Advantages
Released 10 months late
Lower TDP (25W vs 54W)
AMD Ryzen 9 4900H 's Advantages
Higher specification of memory (4266 vs 4266)
Larger memory bandwidth (68.27GB/s vs 51.2GB/s)
Higher base frequency (3.3GHz vs 2.6GHz)
Larger L3 cache size (8MB vs 4MB)