ATI Radeon HD 2400 256MB PCI-Express VCD w/TV-Out DVI ATI Radeon HD 2400 256 MB PCI-Express Video Card General Features: ATI Radeon HD 2400 GPU 256 MB GDDR2 memory PCI-Express x16 interface 256-bit graphics core 64-bits memory interface 450 MHz Engine 500 MHz DDR2 Memory Clocks Refresh Rate: 60 - 240 Hz Dual 400 MHz RAMDAC Integrated Full Hardware MPEG2 decoder Supports Microsoft DirectX 10 (Vertex/Pixel Shaders 4.0) OpenGL 2.0 optimization and support