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Model: GeForce GTX 550, GTX 560Fabrication process: 40nmTransistors: 1.95 billionBus interface: PCI-E 2.0 x 16Graphics clock: 810 MHzProcessor clock: 1620 MHzMemory size: GDDR5 1024 MBMulti-monitor: Up to 3 displaysResolution: 2560 x 1600Standard display connectors: 2 x Dual Link DVI-I, Mini HDMIPower connectors: 2 x 6-PinOpenGL support: 4.1