Meet The Radeon HD 6950 1GB and XFX Radeon HD 6870 Black Edition - AMD's GTX 560 Ti Counter-Offensive: Radeon HD 6950 1GB & XFX's Radeon HD 6870 Black Edition
MSI ATI Radeon HD 6870 Graphic Card, 1 GB GDDR5 - Walmart.com
Asus HD 6870 (EAH6870) - Bjorn3D.com
SAPPHIRE Radeon HD 6870 1GB 256-bit GDDR5 PCI Express 2.1 x16 HDCP Ready CrossFireX Support Video Card (100314-3L ) - Newegg.com
AMD Radeon HD 6870 Specs | TechPowerUp GPU Database