NVIDIA GeForce GTX 260 Core 216 Rev. 2 's Advantages
Larger VRAM bandwidth (111.9GB/s vs 8.000GB/s)
168 additional rendering cores
NVIDIA GeForce GT 520 OEM 's Advantages
Released 3 years and 9 months late
More VRAM (1024GB vs 896GB)
Lower TDP (29W vs 171W)