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ASUS NVIDIA GeForce GT 640 (GT640-2GD3) 2GB / 2GB (max) DDR3 SDRAM PCI Express 3.0 Video Card for sale online | eBay
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iXBT Labs - i3DSpeed, September 2012 - NVIDIA GeForce GT 640 2048MB 128-bit GDDR3 (901/1802/1782 MHz)
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