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All video cards based on ATi RV790 GPU

ManufacturerNameGPU clockROPsTMUsPS / VS | Unified ShadersRAM sizeRAM typeRAM clockBus widthTDP Year
Asus Radeon HD 4890 850 MHz 16 40 - / - | 800 1024 MB GDDR5 3900 MHz 256 bit 190 W 2009
Sapphire Radeon HD 4890 OC 900 MHz 16 40 - / - | 800 1024 MB GDDR5 4000 MHz 256 bit 190 W 2009