NVIDIA GeForce GTX 550 Ti 's Advantages
Lower TDP (116W vs 250W)
NVIDIA GeForce GTX 780 Ti 's Advantages
Released 2 years and 8 months late
Boost Clock928MHz
More VRAM (3GB vs 1GB)
Larger VRAM bandwidth (336.6GB/s vs 98.50GB/s)
2688 additional rendering cores