Amazon.com: Valley Of The Sun 4GB Graphics Video Card GPU Upgrade Replacement, for Alienware M15X M17X M18X R1 R2 R3 R4 Gaming Laptop, NVIDIA GeForce GTX 680M GDDR5 MXM VGA Board Original
Alienware 17 R4 Review - Gaming Laptop Reviews by MobileTechReview
M17X R4 Still Going Very Strong! : r/Alienware
Amazon.com: Valley Of The Sun 8GB Graphics Card GPU Replacement, for Dell Precision M6700 M6800 Alienware 17 18 M18X R2 R3 M17X R4 R5 Clevo Gaming Laptop, NVIDIA GeForce GTX 880M GDDR5