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AMD Radeon HD 6990 Specs | TechPowerUp GPU Database
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Marketing War: HD 6990 vs GTX 590 or when AMD Challenges NVIDIA | Geeks3D
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ASUS Radeon HD 6990 4 GB Review - A Closer Look | TechPowerUp
AMD Radeon HD 6990 4GB Review | bit-tech.net
ASUS Radeon HD 6990 4 GB Review - The Card | TechPowerUp
Meet The 6990 - AMD's Radeon HD 6990: The New Single Card King
Sapphire Radeon HD 6990 4GB Technical Run Down
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AMD Radeon HD 6990 4GB Dual GPU Video Card Review - Page 12 of 15 - Legit Reviews
XFX HD 6990 Specs | TechPowerUp GPU Database
AMD's Radeon HD 6990 Graphics Card - The Tech Report
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Radeon HD 6990 Can Run PC Game System Requirements
