ASUS HD7870 2GB DirectCU II, PCI-E A. Maximum resolution: 4096 x 2160 pixels, Graphics processor family: AMD, Processor clock speed: 1010 MHz. Graphic adapter memory: 2048 MB, Graphics adapter memory type: GDDR5-SDRAM, Memory bus: 256 bit. Interface type: PCI Express 3.0. Shader model version: 5.0, OpenGL version: 4.2, HDMI version: 1.4a. Supplementary power connectors: 2x 6-pin