The Intel Pentium 4 processor 6XX sequence3 supporting Hyper-Threading Technology2 helps to provide additional overall performance and improved system utilization with the 2MB of L2 cache and other advanced technologies. With a computer based on the Intel Pentium 4 Processor 6XX sequence supporting Hyper-Threading Technology, there are endless possibilities for work, play, creating, learning and being entertained. The processor capabilities and the features of a compatible Intel Express Chipset combine for a dynamic and powerful desktop computer for the home, office and classroom. Features Execute Disable Bit Enhanced Intel SpeedStep Technology Intel EM64T Note: Intel Extended Memory 64 Technology (Intel EM64T) requires a computer system with a processor, chipset, BIOS, OS, device drivers and applications enabled for Intel EM64T. Processor will not operate (including 32-bit operation) without an Intel EM64T-enabled BIOS. Performance will vary depending on your hardware and software configurations. Intel EM64T-enabled OS, BIOS, device drivers and applications may not be available. Check with your vendor for more information. 2Hyper-Threading Technology requires a computer system with an Intel Pentium 4 processor supporting HT Technology and an HT Technology enabled chipset, BIOS and operating system. Performance will vary depending on the specific hardware and software you use. See http://www.intel.com/info/hyperthreading for information. 3Intel processor numbers are not a measure of performance. Processor numbers differentiate features within each processor family, not across different processor families. See http://www.intel.com/products/processor_number for details.