Physical memory organization

• IA-32 Memory Models
• IA-64 Memory Models

IA-32 Memory Models

• 32-bit linear address space (or flat memory model)
• Segmented memory model
• Real-address mode memory model

IA-64 Memory Models

• 64-bit linear address space

Also see

• Microcode

External links

• Wikipedia: List of Intel microprocessors
• Wikipedia: Memory address
• Wikipedia: Intel Memory Model
• Intel® 64 and IA-32 Architectures Software Developer’s Manual Combined Volumes: 1, 2A, 2B, 2C, 3A, 3B and 3C