NVIDIA GeForce GTX 880M 's Advantages
More VRAM (8GB vs 4GB)
Larger VRAM bandwidth (160.0GB/s vs 144.0GB/s)
512 additional rendering cores
AMD Radeon RX 6550M 's Advantages
Released 8 years and 10 months late
Boost Clock has increased by 186% (2840MHz vs 993MHz)
Lower TDP (80W vs 122W)