AMD Radeon RX 6600S 's Advantages
Released 13 years and 7 months late
Boost Clock2000MHz
More VRAM (4GB vs 512GB)
Larger VRAM bandwidth (224.0GB/s vs 54.40GB/s)
1472 additional rendering cores
ATI Mobility Radeon HD 3870 's Advantages
Lower TDP (55W vs 80W)