Sapphire 11149-01-20R
ATI Radeon HD 4770, GDDR5 128-bit technology, PCI Express x16 interface, 2560 x 1600 max res
Sapphire 11164-00-20R
GDDR5 128-bit technology, 1024 MB Installed video memory, PCI Express x16 interface, 700 MHz clock speed, 2048 x 1536 max res
Sapphire 21163-00-20R
ATI Radeon HD 5750, GDDR5 128-bit technology, 1024 MB Installed video memory, PCI Express x16 interface, 2048 x 1536 max res
Sapphire 21162-00-50R
GDDR5 256-bit technology, 1024 MB Installed video memory, PCI Express x16 interface, 2560 x 1600 max res
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