NVIDIA GeForce GTX 570 's Advantages
Larger VRAM bandwidth (152.0GB/s vs 144.2GB/s)
NVIDIA GeForce GTX 660 's Advantages
Released 1 years and 9 months late
Boost Clock1032MHz
More VRAM (2GB vs 1GB)
480 additional rendering cores
Lower TDP (140W vs 219W)