Sparkle Technology GeForce GTX 465. Graphics processor: GeForce GTX 465, Maximum resolution: 2560 x 1600 pixels, Processor clock speed: 607 MHz. Graphic adapter memory: 1024 MB, Graphics adapter memory type: GDDR5, Memory bus: 256 bit. Interface type: PCI Express 2.0. Shader model version: 5.0, OpenGL version: 3.2, HDMI version: 1.3a. Minimum system power supply: 550 W