XFX Radeon R9 280X Black Edition Video Card Review - Page 7 of 8 - Benchmark Reviews @TechPlayboy
Asus Radeon R9 280X DirectCU II TOP - The Radeon R9 280X Review: Feat. Asus & XFX - Meet The Radeon 200 Series
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 Video Card Review w/ ASUS, XFX and MSI - Legit Reviews