NVIDIA GeForce GTX 670 's Advantages
Released 2 years and 3 months late
Boost Clock980MHz
More VRAM (2GB vs 512GB)
Larger VRAM bandwidth (192.3GB/s vs 51.20GB/s)
1024 additional rendering cores
ATI Radeon HD 5550 's Advantages
Lower TDP (39W vs 170W)