AMD Radeon RX 570 Mobile 's Advantages
More VRAM (8GB vs 4GB)
256 additional rendering cores
AMD Radeon RX 6600S 's Advantages
Released 4 years and 1 months late
Boost Clock has increased by 66% (2000MHz vs 1206MHz)
Larger VRAM bandwidth (224.0GB/s vs 211.2GB/s)
Lower TDP (80W vs 85W)