Key Architectural Features

Key Architectural Features
AMD Athlon™ X2 Dual-Core Processors


The industry's first true on-die dual-core x86 processor

* Inter-core communication at CPU speed
* Provides dual-core system capability in single-core system configurations

The AMD64 core provides leading-edge performance for both 32-bit and 64-bit applications

* AMD64 technology provides full-speed support for x86 code base for uncompromising performance
* 40-bit physical addresses, 48-bit virtual addresses
* Sixteen 64-bit integer registers
* Sixteen 128-bit SSE/SSE2/SSE3 registers
* AMD Digital Media XPress™ provides support for SSE, SSE2, SSE3 and MMX instructions

A high-bandwidth, low-latency integrated DDR memory controller

* Supports PC2-6400 (DDR2-800), PC2-5300 (DDR2-667), PC2-4200 (DDR2-533) or PC2-3200 (DDR2-400) SDRAM unbuffered DIMMs
* Support for 64-bit DDR2 SDRAM memory
* Up to 12.8GB/s memory bandwidth

HyperTransport™ technology for high speed I/O communication

* One 16-bit link up to 2000MHz
* Up to 8GB/s HyperTransport™ I/O bandwidth
* Up to 20.8GB/s total delivered processor-to-system bandwidth (HyperTransport bus + memory bus)

Large high performance on-chip cache

* 64KB Level 1 instruction cache per core
* 64KB Level 1 data cache per core
* Up to 1MB Level 2 cache per core

Cool'n'Quiet™ technology for quieter operation and reduced power requirements