HIS R9 270, 280, 285, 290, HD 7950, 7970X IceQ X2 GPU Fan Replacement
AMD Radeon R9 280X vs MSI Radeon HD 7950 Boost OC: What is the difference?
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