AMD64 technology enables leading-edge software performance and new experiences & capabilities. Specifically, AMD64 technology:

Provides the highest performance levels without any changes to existing 32-bit applications.
Allows simultaneous, high-performance 32-bit and 64-bit computing, offering end users an easy, compelling and affordable means to take advantage of tomorrow’s emerging applications.

Doubles the number of internal registers enabling increased performance
Vastly expands memory addressability well beyond 4GB for breathtaking realism in graphic intensive applications like 3D games, and real-time results for large memory footprint applications like digital

Enhanced Virus Protection for Windows® XP SP2
Enhanced Virus Protection enabled by Windows XP SP2 is designed to prevent the spread of certain viruses, like MSBlaster and Slammer, significantly reducing the cost and down-time associated with similar viruses and improving the protection of computers and personal information against certain PC viruses.*

HyperTransport™ technology
HyperTransport technology helps increase overall system performance by reducing traditional system bottlenecks, increas.......

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