AMD Ryzen 9 7945HX3D 's Advantages
Released 3 years and 4 months late
Higher specification of memory (5200 vs 4266)
Larger memory bandwidth (83.2GB/s vs 68.27GB/s)
Newer PCIe version (5 vs 3.0)
Larger L3 cache size (128MB vs 8MB)
More modern manufacturing process (5nm vs 7nm)
AMD Ryzen 9 4900HS 's Advantages
Higher base frequency (3.0GHz vs 2.3GHz)
Lower TDP (35W vs 55W)