The Intel® Pentium® D Processor is a dual-core processor for the desktop PC. It consists of two complete execution cores in one physical processor, both running at the same frequency. Both cores share the same packaging and the same interface with the chipset/memory.
A dual-core processor is like a four-lane road – it can handle up to twice as many cars as a two-lane road without making each car drive twice as fast.
The Pentium D processor when combined with the Intel® 945 Express Chipset creates a platform that will enable new computing experiences. This new platform delivers value by providing additional computing resources that expand the PC's capabilities in the form of higher throughput and computing resources that expand the PC's capabilities in
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| the form of higher throughput and simultaneous computing. Similarly, with an Intel® dual-core processor-based PC, users can perform multiple tasks such as downloading music and gaming simultaneously. |
| Intel® Pentium® D Processor Features |
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| Processor | Intel® Pentium® D processor | | Processor Number1 | 960, 950, 945, 940, 935, 930, 920 | 840, 830, 820, 805 | | Architecture | 65nm technology | 90nm technology | | L2 Cache | 2x2MB | 2x1MB | | Clock Speed | 3.40, 3.20, 3.0, 2.80 GHz | 3.20, 3.0, 2.80, 2.66 GHz | | Front Side Bus | 800 MHz | 800/533 MHz | | Execute Disable Bit2 | Yes | Yes | | Intel® Extended Memory 64 Technology (Intel® EM64T)3 | Yes | Yes | | Enhanced Intel SpeedStep® Technology4 | Yes | Yes (820/805 not supported) | | Intel® Virtualization Technology5 | Yes | No | | Socket | LGA775 | LGA775 | | Chipset | | | Motherboard | | | Features | Benefits | | Dual-Core | Provides two execution cores in one physical processor allowing the platform to do more in less time while enjoying smooth interaction with your PC. | | Intel® Virtualization Technology | Intel® Virtualization Technology enables one hardware platform to function as multiple "virtual" platforms. For businesses, it offers improved manageability, limiting downtime and maintaining worker productivity by isolating computing activities into separate partitions. In the home, it allows creating unique user environments for multiple family members looking to use the same platform simultaneously. | | Execute Disable Bit | Can help to prevent some classes of viruses and worms that exploit buffer overrun vulnerabilities thus helping to improve the overall security of the system. | | Intel® Extended Memory 64 Technology | Processors with Intel EM64T allow platforms to access larger amounts of memory and will support 64-bit extended operating systems. | | Enhanced Intel SpeedStep® Technology | Enables cooler and quieter PC designs—depending on system implementation and usage. (Not available on 820.) | | Intel Designed Thermal Solution | Includes a 4-pin connector for fan speed control to help minimize the acoustic noise levels generated from running the fan at higher speeds for thermal performance.5 The fan speed control technology is based on actual CPU temperature and power usage. |
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1 Intel processor numbers are not a measure of performance. Processor numbers differentiate features within each processor family, not across different processor families. See www.intel.com/products/processor_number/ for details.
2 Enabling Execute Disable Bit functionality requires a PC with a processor with Execute Disable Bit capability and a supporting operating system. Check with your PC manufacturer on whether your system delivers Execute Disable Bit functionality.
3 Intel® Virtualization Technology, and Intel® Extended Memory 64 Technology (Intel® EM64T) require a computer system with a processor, chipset, BIOS, enabling software and/or operating system, device drivers and applications designed for these features. Performance will vary depending on your configuration. Contact your vendor for more information.
4 Enhanced Intel SpeedStep® Technology for specified units of this processor will be available in the 2nd quarter of 2006. See the Processor Spec Finder at http://processorfinder.intel.com or contact your Intel representative for more information.
5 The acoustic benefits of the 4-pin header are reliant on a properly designed motherboard. Boxed Intel® desktop boards that support these processors were designed with support for acoustic benefits of the 4-pin header.
