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SAPPHIRE Radeon HD 7770 GHz Edition 1GB 128-bit GDDR5 PCI Express 3.0 x16 HDCP Ready Video Card ( 11201-00-20G) - Newegg.com
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Graphic card specification GIGABYTE Radeon HD 7770 1020Mhz PCI-E 3.0 2048Mb 4500Mhz 128 bit 2xDVI HDMI HDCP
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AMD Launches the Cape Verde based HD7700 Series Graphic Cards - Radeon HD7770 Ghz Edition and Radeon HD7750
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