Single gpu graphics card series ati amd radeon r7 250 slot pcie pcie lanes x16 pcie version 30 chipset ati amd oland chipset manufacturer ati amd cpu clock speed 925 mhz memory size 4 gb memory type gddr5 memory interface 128 bit memory clock speed 4 600 mhz suitable for office interfaces dvi hdmi vga dvi specification dvi d single link directx support 112 opengl support 43 shader model 50 stream processing units 384 max reso