This card earns a Best Buy award from UH.

"The Sapphire Radeon HD 6990 review also features the Gigabyte GeForce GTX 590. The Sapphire Radeon HD 6990 uses the Antilles GPU at 830Mhz and has 4GB GDDR5 memory running at 5000Mhz. The Sapphire Radeon HD 6990 has a 256Bit Memory Interface, 2x1536 Shader Processors and DirectX 11. We will be testing the Sapphire Radeon HD 6990 and Gigabyte GeForce GTX 590 using Aliens Vs Predator, Bad Company 2, Lost Planet 2, Just Cause 2 and Metro 2033. Two mega powerful video cards do battle, who will win"



Link: UltimateHardware