AMD FirePro S7150 x2 100-505722 16GB (2 x 8GB) 256-bit GDDR5 PCI Express 3.0 x16 Full height / Full length Video Cards - Workstation Chipset Manufacturer: NVIDIA DirectX: DirectX 11.1 OpenGL: OpenGL 4.4 Cooler: Fanless Operating Systems Supported: Microsoft Windows 8.1, Windows 7, and Linux (32- or 64-bit) System Requirements: Max Power: 265W PCI Express based PC is required with one x16 lane graphics slot available on the motherboard. AMD recommends PCI Express v 3.0 for optimal performance Internet connection for drive installation 750W or greater power supply 16GB DDR3 system memory recommended (depending on virtual environment) Slot Width: Two Slots