AMD Radeon HD 6990 official: World's fastest graphics card - SlashGear
My photo from 2012 I have 2x radeon hd 6990 in crossfire and cpu core i7-920. I could not achieve stable 60 fps in Crysis. Often FPS in Crysis decreased to 40-50.
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Amazon.com: XFX AMD Radeon HD 6990 830M 4 GB GDDR5 Four MINIDP DVI PCI-E Video Card, HD699AENF9 : Electronics
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Sapphire 100310SR Radeon HD 6990 Video Card - 4GB, GDDR5, Dual-GPU, PCI-Express 2.1 (x16), 4x Mini DisplayPort, DVI, DirectX 11, Dual-Slot, Eyefinity 6, CrossFireX Ready at TigerDirect.com
Radeon HD 6990 review - Introduction
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Amazon.com: XFX AMD Radeon HD 6990 830M 4 GB GDDR5 Four MINIDP DVI PCI-E Video Card, HD699AENF9 : Electronics
AMD Radeon HD 6990 4GB Dual GPU Video Card Review - Page 2 of 15 - Legit Reviews
