General information
TypeCPU / Microprocessor
Market segmentServer
FamilyAMD Third Generation OpteronAMD Third Generation Opteron
Model number8356
CPU part numbers
  • OS8356WAL4BGH is an OEM/tray microprocessor
Stepping codesAAAFB AA   GAAAB AA   GAAFB AA
Frequency 2.3 GHz / 2300 MHz
Bus speed2000 MHz (integrated memory controller)
1000 MHz (HyperTransport links)
Package1207-land lidded LGA
AMD Package numbers29657
SocketSocket Fr2(1207)
Introduction dateApril 9, 2008
Price at introduction$1514
Architecture / Microarchitecture
Instruction setx86
MicroarchitectureK10
Processor coreBarcelona
Core steppingDR-B3
CPUID100F23
Manufacturing process0.065 micron silicon-on-insulator (SOI) technology
463 million transistors
Die285mm2
Data width
64 bit
The number of CPU cores4
The number of threads4
Floating Point UnitIntegrated
Level 1 cache size4 x 64 KB 2-way set associative instruction caches
4 x 64 KB 2-way set associative data caches
Level 2 cache size4 x 512 KB 8-way set associative caches
Level 3 cache size2 MB 32-way set associative shared cache
Physical memory256 TB
MultiprocessingUp to 8 processors
Extensions & Technologies
  • 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
  • AMD-V / AMD Virtualization technology
Security FeaturesEVP / Enhanced Virus Protection
Low power features
  • Enhanced PowerNow!
  • CoolCore technology
  • Independent Dynamic Core Technology
  • Dual Dynamic Power Management
  • C1 Halt, C2 and C3 Stop Grant core states
  • C1E Enhanced Stop Grant state
Integrated Graphics Processing Unit
None 
Integrated peripherals / components
Memory controller
The number of controllers: 1
Memory channels (per controller): 2
Memory channels (total): 2
Supported memory: DDR2