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GT 640 | ZOTAC
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Amazon.com: EVGA GeForce GT 640 2048MB GDDR3 Dual DVI, mHDMI Graphics Cards 02G-P4-2645-KR : Electronics
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NVIDIA Announces Retail GeForce GT 640 DDR3
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ASUS GeForce GT 640 Gaming Graphics Card GT640-DCSL-2GD3 B&H
GIGABYTE GT 640 OC Specs | TechPowerUp GPU Database
MSI GT 640 V1 Specs | TechPowerUp GPU Database
Used - Very Good: MSI GeForce GT 640 1GB DDR3 PCI Express 3.0 x16 Video Card N640GT-MD1GD3 GPUs / Video Graphics Cards - Newegg.com
