Graphics Cards Guide

Sapphire HD6990 4GB GDDR5
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Sapphire HD6990 4GB GDDR5


A key feature of the Sapphire HD6990 4GB GDDR5 is a switch selectable dual BIOS, which allows the user to chose a core clock speed of 830MHz or 880MHz for extreme use. Also, it is fitted with 4GB of GDDR5 memory.