NVIDIA GeForce GTX 580M 2GB GDDR5 Graphics Video Card for gaming laptops with SLI OpenGL and 3D Vision support Supported Technology: 3D Vision, CUDA, DirectX 11, PhysX, SLI, Optimus Bus Type: PCI-E 2.0 Connector Type: MXM 3.0 Chipset/GPU Manufacturer: NVIDIA Memory Type: 2GB GDDR5