Galaxy GeForce GTX 550 Ti 1 GB GDDR5 PCI Express 2.0 DVI/HDMI/VGA SLI Ready Graphics Card, 55NGH8HX4NXK Fierce Performance DirectX 11 Graphics GeForce GTX Gaming NVIDIA CUDA Technology NVIDIA PhysX Technology DirectX 11 Graphics GeForce GTX Gaming NVIDIA CUDA Technology NVIDIA PhysX Technology NVIDIA 3D Vision Ready NVIDIA PureVideo HD Technology NVIDIA SLI Ready