NVIDIA GeForce GTX 780 6 GB 's Advantages
Released 2 years and 5 months late
Boost Clock902MHz
More VRAM (6GB vs 1GB)
Larger VRAM bandwidth (288.4GB/s vs 14.40GB/s)
2256 additional rendering cores
NVIDIA GeForce GT 520 PCIe x1 's Advantages
Lower TDP (29W vs 250W)