AMD Ryzen 3 5400U 's Advantages
Lower TDP (25W vs 35W)
AMD Ryzen 9 6980HS 's Advantages
Released 1 years late
Higher specification of memory (6400 vs 4266)
Larger memory bandwidth (76.8GB/s vs 51.2GB/s)
Newer PCIe version (4.0 vs 3.0)
Higher base frequency (3.3GHz vs 2.6GHz)
Larger L3 cache size (16MB vs 8MB)
More modern manufacturing process (6nm vs 7nm)