NVIDIA GeForce GT 550M 's Advantages
Lower TDP (35W vs 122W)
NVIDIA GeForce GTX 880M 's Advantages
Released 3 years and 2 months late
Boost Clock993MHz
More VRAM (8GB vs 1024GB)
Larger VRAM bandwidth (160.0GB/s vs 28.80GB/s)
1440 additional rendering cores