NVIDIA Quadro FX 5800 by PNY 4GB GDDR3 PCI Express Gen 2 x16 Dual DVI-I DL DisplayPort and Stereo OpenGL, DirectX, CUDA, and OpenCL Profesional Graphics Board, VCQFX5800-PCIE-PB 4GB GDDR3 GPU memory with ultra fast memory bandwidth NVIDIA CUDA parallel computing processor Highest color fidelity DisplayPort digital display connector Dual dual-link DVI-I display connectors