AMD Athlon 64 4000+ Processor - Socket 939, 1MB - Boxed

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

• AMD64 technology provides full speed support for x86 code base for uncompromising 32-bit performance, with readiness for 64-bit applications
• 40-bit physical addresses, 48-bit virtual addresses
• Eight new (sixteen total) 64-bit integer registers
• Eight new (sixteen total) 128-bit SSE/SSE2 registers
• Including support for 3DNow!™ Professional technology and SSE2

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

• Supports PC3200, PC2700, PC2100 or PC1600 DDR SDRAM
  Unbuffered DIMMs
• 72-bit DDR SDRAM memory (64-bit interface + 8-bit ECC)
• Up to 3.2 GB/s memory bandwidth
• ECC protection enables increased system reliability

HyperTransport™ technology for high speed I/O communication

• One 16-bit link up to 1600MHz
• Up to 6.4GB/s HyperTransport™ I/O bandwidth
• Up to 9.6GB/s total delivered processor-to-system bandwidth

Large high performance on-chip cache

• 64KB Level 1 instruction cache
• 64KB Level 1 data cache
• Up to 1MB Level 2 cache
• Improved branch prediction for greater accuracy in anticipating instruction calls
• Enhanced TLB structures for better memory management of complex workloads