TESTED WORKING AMD Radeon HD 4870 GPU Alienware M17x R1 R2 + healsink Left

NVIDIA Quadro P1000, 4GB GDDR5, 4x Mini-DP, Full Height GPU

*FOR PARTS* AMD Radeon HD 5870M 1GB MXM GPU w/ Alienware Heatsink M17x R1 R2

ATI Radeon HD 4850 Graphics Card Tested Working

Sapphire Radeon HD 4890 1GB GDDR5 256-bit Dual DVI Graphics Card

Sapphire AMD Radeon Tri-X

NVIDIA GeForce GTX 580 Graphics Card SLI/CrossFire Ready CUDA PCIe x16

GPU Graphics Card - RADEON ATI-102