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GT640-1GD5-L | Asus GeForce GT 640 1GB 64-bit GDDR5 PCI Express 2.0 DVI/ HDMI HDCP Ready Low Profile Video Graphics Card (Refurbished)
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Nvidia GeForce GT 640 GDDR5 vs Zotac GeForce GT 640 1GB: What is the difference?
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EVGA - Product Specs - EVGA GeForce GT 640
NVIDIA Announces Retail GeForce GT 640 DDR3
EVGA NVIDIA GT640 1GB CUDA Video Card for Mac Pro Mid 2010 - 2012
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GT 640 | Can it Play Popular Games? - YouTube
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