Amazon.com: 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 Radeon R9 280X and 270X detailed a bit more | VideoCardz.com
XFX Radeon R9 280X Black Double Dissipation Edition Video Card R9-280X-TDBD - Newegg.com
HIS Radeon R9 280X iPower IceQ X2 Turbo Boost 3GB GDDR5 PCIe Reviews, Pros and Cons | TechSpot