Gigabyte GV-R777OC-1GD AMD Radeon HD 7770 1GB GDDR5 DVI-I / HDMI / 2X Mini-Displayport PCI-Express 3.0 Graphic CardPowered by AMD Radeon 7770 GPU and integrated with industry's best 1024MB GDDR5 memory and 128-bit memory interface.
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