HIS H487F1GP Radeon HD 4870 HDMI Dual DL-DVI HDCP 1GB 256bit GDDR5 PCI Express 2.0 X16 RoHS Video Card - Retail GDDR5 memory 256-bit memory interface DirectX 10.1 24x custom filter anti-aliasing (CFAA) and high performance anisotropic filtering ATI CrossFireX multi-GPU support for highly scalable performance