Windows XP Professional x64 Edition is designed to address
the most demanding business needs of technical workstation
users who require large amounts of memory and floating point
performance in areas such as mechanical design and analysis,
digital content creation, and scientific and high-performance
computing applications.
Note: The Windows XP Professional x64 Edition - CD will not
be available until approximately late February. If you prefer to
not wait for the CD version, you are welcome to continue to
process your order for the download version.