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Radeon HD 6990」採用グラフィックスカードが各ベンダーから：やはり慎重ですね - ITmedia PC USER
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AMD Radeon HD 6990 4GB Dual GPU Video Card Review - Legit Reviews
SAPPHIRE Radeon HD 6990 Video Card with Eyefinity 100310SR - Newegg.com
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HD 6990 Test in 7 Games - YouTube
Radeon HD 6990検証、性能は伸びたが消費電力も増えた | 日経クロステック（xTECH）
Club 3D Announces its Radeon HD 6990 | VideoCardz.com
