AMD Radeon R9 280X vs Nvidia GeForce GTX 770 review
Asus Radeon R9 280 Direct CU II Review | PCMag
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
ASUS Radeon R9 280X Video Card R9280X-DC2T-3GD5 - Newegg.com