AMD Ryzen 9 4900H 's Advantages
Higher specification of memory (4266 vs 3733)
Larger memory bandwidth (68.27GB/s vs 51.2GB/s)
Higher base frequency (3.3GHz vs 1.8GHz)
Larger L3 cache size (8MB vs 4MB)
More modern manufacturing process (7nm vs 10nm)
Intel Celeron 6305 's Advantages
Released 6 months late
Lower TDP (15W vs 54W)