AMD Radeon RX 6600S 's Advantages
Released 10 years late
Boost Clock has increased by 264% (2000MHz vs 550MHz)
More VRAM (4GB vs 1024GB)
Larger VRAM bandwidth (224.0GB/s vs 14.40GB/s)
1392 additional rendering cores
AMD Radeon HD 7550M 's Advantages
Lower TDP (14W vs 80W)