Sapphire Radeon HD5570 512MB GDDR5 PCI-E HDMI DVI VGA. Maximum resolution: 2560 x 1600 pixels, Processor front side bus: 650 MHz, Graphics adapter RAMDAC: 800 MHz. Graphics adapter memory type: GDDR5, Memory bus: 128 bit, Memory clock speed: 4000 MHz. Interface type: PCI Express 2.1. Shader model version: 5.0, OpenGL version: 4.0, HDMI version: 1.3