General information

Type      CPU / Microprocessor

Market segment              Server

Family   AMD Six-Core Opteron

Model number                 8431

CPU part numbers                        OS8431WJS6DGN is an OEM/tray microprocessor

             OS8431WJS6DGNWOF is a boxed processor without fan and heatsink

Stepping codes ACADD CA   CCADD CA

Frequency          2400 MHz

Bus speed           2200 MHz (integrated memory controller)

2400 MHz (HyperTransport links)

Package               1207-land lidded LGA

Socket  Socket Fr6(1207)

Architecture / Microarchitecture

Microarchitecture            K10

Processor core  Istanbul

Core stepping    HY-D0

CPUID   100F80

Manufacturing process 0.045 micron silicon-on-insulator (SOI) technology

Data width          64 bit

The number of CPU cores            6

The number of threads 6

Floating Point Unit           Integrated

Level 1 cache size             6 x 64 KB 2-way set associative instruction caches

6 x 64 KB 2-way set associative data caches

Level 2 cache size             6 x 512 KB 16-way set associative caches

Level 3 cache size             6 MB 48-way set associative shared cache

Physical memory              256 TB

Multiprocessing                Up to 8 processors

Features                           MMX instructions

             Extensions to MMX

             3DNow! technology

             Extensions to 3DNow!

             SSE / Streaming SIMD Extensions

             SSE2 / Streaming SIMD Extensions 2

             SSE3 / Streaming SIMD Extensions 3

             SSE4a

             AMD64 / AMD 64-bit technology

             EVP / Enhanced Virus Protection

             AMD-V / AMD Virtualization technology

Low power features                    PowerNow! technology

             CoolCore technology

             Dual Dynamic Power Management

             Power Cap technology

             Smart Fetch technology

             C0, C1, S0, S1, S3, S4, and S5 states

Integrated peripherals / components

Integrated graphics         None

Memory controller          The number of controllers: 1

Memory channels: 2

Channel width (bits): 72

Supported memory: DDR2

Other peripherals            HyperTransport 3.0 technology with HT Assist and three 16-bit links

Electrical / Thermal parameters

V core   1.3V

Minimum operating temperature            0°C

Maximum operating temperature           55°C - 76°C

Average CPU Power       75 Watt

Thermal Design Power 115 Watt