NVIDIA GeForce GTX 660 Rev. 2 's Advantages
Released 4 years and 6 months late
Boost Clock1032MHz
More VRAM (2GB vs 1536GB)
480 additional rendering cores
Lower TDP (140W vs 250W)
NVIDIA GeForce GTX 480 's Advantages
Larger VRAM bandwidth (177.4GB/s vs 144.2GB/s)