Specifications Processor AMD Athlon? 64 X2 Dual-Core Model Number 3800+ Frequency (MHz) 2000 L2 Cache Size 512KB x2 Socket AM2 Stepping F2 Manufacturing Tech (CMOS) 90nm SOI Wattage 89 System Bus (MHz) 2000   Featured Technologies Direct Connect Architecture Helps eliminate the challenges and bottlenecks of system architecture by directly connecting processors, the memory controller, and the I/O to the CPU HyperTansport? Technology HyperTransport technology helps provide increased overall system performance with up to a 2000MHz full duplex system bus Cool + Quiet Technology Cool + Quiet technology can minimize heat and noise for a better working environment Enhanced Virus Protection Can significantly reduce the cost associated with certain malicious viruses and help minimize the total cost of ownership of AMD64 processor-based systems DDR2 Technology Integrated DDR2 Memory Controller is available on socket AM2 compatible parts Energy Efficient Models These processors have earned US EPA ENERGY STAR recognition, a government-backed program helping businesses and individuals protect the environment through superior energy efficiency. That means reduced electricity bills and environmentally friendly reduction of greenhouse gas emissions for you AMD Virtualization Virtualization technology is chip-based virtualization, which allows a single PC to act like multiple virtual machines and is also available on socket AM2 processor parts AMD Digital Media Xpress? AMD Digital Media Xpress? enables stellar performance and playback quality on digital entertainment such as games, streaming video and audio, DVDs, and music True Multi-tasking Increases computing capacity without requiring additional power or cooling; enables quick, easy, and inexpensive performance upgrades, while maintaining existing system footprint