Apple Mac Pro NVIDIA GeForce 8800GT 512MB Video Graphics Card

Card Interface PCIe Card Form Factor Full Length; Full Height PCIe Lanes x16 PCIe Slot x16 PCIe Version PCI Express 2.0 Clock Speed (Base) Up to 600 MHz Video Memory 512MB 256-bit GDDR3 Cuda Cores 112 Mac OS Compatibility Mac OS X 10.5 Leopard Mac OS X 10.6 Snow Leopard Mac OS X 10.7 Lion Mac OS X 10.8 Mountain Lion OS X 10.9 Mavericks OS X 10.10 Yosemite OS X 10.11 El Capitan Mac OS 10.12 Sierra PC OS Compatibility Not compatible with Windows PCs External Connectivity (2) Dual-link DVI-I