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Sapphire Radeon HD 7790 Dual-X OC 1GB GDDR5 PCIe Reviews, Pros and Cons | TechSpot
Sapphire HD 7770 Vapor-X OC Specs | TechPowerUp GPU Database
Sapphire Radeon HD 7770 Vapor-X OC Edition 1GB Video Card Review
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AMD Launches the Cape Verde based HD7700 Series Graphic Cards - Radeon HD7770 Ghz Edition and Radeon HD7750
AMD Radeon HD 7730 Photo's and Benchmarks
Sapphire Launches its Radeon HD 7700 Series Lineup | TechPowerUp
MSI Announces its Radeon HD 7700 Series Products | VideoCardz.com