MSI GeForce GTX 660M in GE60 and GE70 Gaming Notebooks
NVIDIA's GeForce GTX 660M Comes to Gigabyte's Gaming Notebooks - HardwareZone.com.sg
Amazon.com: Valley Of The Sun Original 2GB Graphics Video Card GPU Replacement, for Asus G75 Series Laptop G75V G75VW G75VX, NVIDIA GeForce GTX 660M 670M N13E-GE-A2 GDDR5 2 GB, MXM VGA Board