EVGA GeForce GTX 280. Graphics processor: GeForce GTX 280, Maximum resolution: 2560 x 1600 pixels, Processor clock speed: 602 MHz. Graphic adapter memory: 1024 MB, Graphics adapter memory type: GDDR3, Memory bus: 512 bit. Interface type: PCI Express 2.0. Shader model version: 4.0, OpenGL version: 3.0. Power requirements: 12 Volt; 40 Amps, Minimum system power supply: 550 W