AMD Radeon R9 280X 3GB HDMI PCI Express Video Graphics Card for Apple Mac Pro, outperforms ATI Sapphire Radeon HD 2600, 4870, 5770, 7950, 9000, 9800 Gigabyte : Electronics
AMD Display Technologies: 3x DVI/HDMI Out, Tiled Display Support, & More - The Radeon R9 280X Review: Feat. Asus & XFX - Meet The Radeon 200 Series