DSP-P-XP64 Microsoft® Windows XP Professional X64 Edition

Warning: This operating system may not have drivers for your existing hardware. Upgrading to this operating system is recommended for knowledged users only.

Windows XP Professional x64 Edition is designed to provide faster performance, increased reliability, and flexibility to today’s most demanding users, enabling them to run memory- and calculation-intensive applications and processes more efficiently. This new technology arms technical workstation users and cutting-edge home PC enthusiasts with a secure platform that can run new 64-bit applications as well as most existing 32-bit applications for maximum flexibility on a single PC.

• High performance platform for the next generation of applications
  Windows XP Professional x64 Edition is a rich platform that enables the next generation of high-performance computing. 64-bit native applications can deliver more data per clock cycle, making them run faster and more efficiently.
• Large memory support
  Windows XP Professional x64 Edition supports up to 128 gigabytes (GB) of RAM and 16 terabytes of virtual memory, enabling applications to run faster when working with large data sets. Applications can preload substantially more data into virtual memory, allowing rapid access by the 64-bit processor.
• Flexibility
  Windows XP Professional x64 Edition provides a rich platform to integrate 64-bit applications and existing 32-bit applications using the Windows on Windows 64 (WOW64) x86 emulation layer, providing customers with the ability to move to 64-bit computing without having to sacrifice their existing investment in 32-bit software and Windows expertise.
• Multiprocessing and multicore
  Windows XP Professional x64 Edition is designed to support up to two single or multicore x64 processors for maximum performance and scalability.
• Same programming model
  Developers with 32-bit skills will be comfortable and quickly productive in the 64-bit Windows environment, finding it virtually identical to the development environment for 32-bit Windows.

Windows XP Professional x64 Edition is designed to work with 64-bit processors from AMD and Intel that support the x64 extensions to the x86 architecture. These include the Athlon 64, Athlon 64 FX, Mobile Athlon 64, Turion 64, and Opteron processors from AMD, and the Xeon with EM64T and Pentium 4 with EM64T from Intel.

FAQ:

Can I run Windows XP Professional X64 Edition on my Itanium Workstation?No. The Itanium processor is a 64-bit processor that has a different architecture than the x64 processors. A version of Windows XP for the Itanium processor is no longer available. Windows Server 2003 Enterprise Edition continues to support the Itanium processor.

Can I run Windows XP Professional X64 Edition on my Centrino notebook? No, the Pentium M series of processors used in Centrino laptops are not 64-bit processors and can not use the x64 Edition of Windows XP Professional. There are x64-compatible laptops currently shipping that are based on AMD processors.

Why is there no Home x64 Edition of Windows XP? Who should buy Windows XP Professional X64 Edition?
These are closely related questions. The initial target audience for Windows XP Professional x64 Edition is anyone who is running into performance and memory limits on their 32-bit systems, for example, developers, media artists, CAD/CAM, scientific workstations and enthusiasts who are running the most demanding applications, and who require the capabilities of the Professional Edition of Windows XP. Windows XP Home Edition is targeted at the home user and has fewer features. At this point, especially with the current limited driver support, Windows XP Professional x64 Edition is not targeted at the casual home user.

Why is there no driver for my [Insert your device name here]? Windows XP Professional x64 Edition requires that all system drivers be rewritten as 64-bit drivers, 32-bit drivers will not work. The hardware manufacturers are the ones who need to write new drivers, and they're working on it, but it's a resource issue. Writing and certifying a driver takes time and lots and lots of testing. Resources are always constrained, so the manufacturer needs to make a business decision about which hardware has priority for new drivers. This generally means that the focus is on the newest equipment, and older drivers may take a while, or never be done.

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