The ATI Radeon HD 3400 Series of GPUs allow you to experience the power of HD with graphics processing designed for how you work and play. Advance to the next generation of HD game performance and life-like realism thanks to DirectX 10.1 capabilities and plug-and-play ATI CrossFireX multi-GPU upgradeability. Watch the latest Blu-ray and HD-DVD videos in full 1080p HD and upscale beyond - without placing huge demands on your CPU. Technical Specs: ASIC: RV620, 512MB Memory, GDDR2 Memory Configuration, 600Mhz Core Clock, 1000Mhz Memory Clock, 64-bit Memory Interface, Display Formats: Hydravision 4 Dual Link DVI + VO (HDMI via DVI-HDMI adaptor), Superscale unified shader architecture, PCI Express x 16 2.0 support, 40 Stream Processing units, Direct X 10.1 / Shader Model 4.1, ATI Crossfire X Multi-GPU Support for highly scalable performance (Up to four GPU support with an AMD 790FX based motherboard), High-speed 128-bit-HDR (High Dynamic Range) rendering, Up to 24x Custom Filter Anti-Aliasing, 55nm process technology, ATI Avivo HD Video and Display Technology, Game Physics processing capability, Up to 24X Custom Filter Anti-Aliasing, Built-in HDMI with Multi-channel 5.1 surround audio, Support for the ATI Radeon DVI to HDMI adapter, Unified Video Deoder (UVD) for Blu-ray and HD DVD, ATI PowerPlay energy conserving technology, Built-in DisplayPort technology, OpenGL 2.0 Support. System Requirements: AMD Athlon or Intel Pentium 4, PCI Express based PC is required with one X16 lane graphics slot available on the motherboard, 300 Watt or greater power supply, 1GB of system memory, Installation software requires CD-ROM drive, DVD playback requires DVD drive, Blu-ray / HD DVD playback requires Blu-ray / HD DVD drive.