NVIDIA GeForce GT 520 PCIe x1 's Advantages
Lower TDP (29W vs 230W)
NVIDIA GeForce GTX 770 's Advantages
Released 2 years and 1 months late
Boost Clock1085MHz
More VRAM (2GB vs 1024GB)
Larger VRAM bandwidth (224.4GB/s vs 14.40GB/s)
1488 additional rendering cores