Xfx Radeon Hd 6990 4gb Graphics Cards Gpu For Amd Hd 6990 4gb 256bit Gddr5 Video Cards Pc Computer Gaming Hdmi Pci-e X16 Used - Demo Board Accessories - AliExpress
AMD Radeon HD 6990 - Hardware museum
AMD Radeon HD 6990 Dual-GPU Graphics Card Review – Techgage