This H.I.S IceQ Radeon HD 4670 graphics card is a great addition to a compatible pci-e slot computer system. The memory size is 512MB of DDR3 Ram. With a chipset manufacturer of ATI and APIs including OpenGL 3.3, OpenCL 1.1, Shader Model 4.0, and DirectX 10.1, this card provides exceptional performance. The graphics card comes with Dual DVI connectors, making it easy to connect to multiple monitors for even more convenience. This card requires no power cable and keeps cool via quiet fan with heatsink.