AMD Ryzen 7 3700U 's Advantages
Better graphics card performance
Lower TDP (35W vs 45W)
AMD Ryzen 5 6600H 's Advantages
Released 3 years late
Higher specification of memory (6400 vs 2400)
Larger memory bandwidth (76.8GB/s vs 35.76GB/s)
Newer PCIe version (4.0 vs 3.0)
Higher base frequency (3.3GHz vs 2.3GHz)
Larger L3 cache size (16MB vs 4MB)
More modern manufacturing process (6nm vs 12nm)