AMD Opteron 4256 EE - OS4256HJU8KGU information

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Type:CPU	Manufacturer:AMD
family:Opteron 4200 series	microprocessors:AMD Opteron 4256 EE - OS4256HJU8KGU

Type	CPU / Microprocessor
Market segment	Server
Family	AMD Opteron 4200 series
Model number	4256 EE
CPU part number	OS4256HJU8KGU is an OEM/tray microprocessor
Frequency	1600 MHz
Turbo frequency	1900 MHz (more than 4 cores) 2800 MHz (4 cores or less)
Bus speed	3200 MHz HyperTransport links (6.4 GT/s per link)
Package	1207-land lidded organic micro Land Grid Array (LS1207) Pb-free
Socket	Socket C32
Weight	1.4oz / 40g
Introduction date	November 14, 2011
Price at introduction	$377
Architecture / Microarchitecture
Microarchitecture	Bulldozer
Platform	San Marino Adelaide
Processor core	Valencia
Core stepping	OR-B2
Manufacturing process	0.032 micron silicon-on-insulator (SOI) technology
Die size	316mm²
Data width	64 bit
The number of cores	8
The number of threads	8
Floating Point Unit	Integrated (shared between two cores in each module)
Level 1 cache size	4 x 64 KB 2-way set associative shared instruction caches 8 x 16 KB 4-way set associative data caches
Level 2 cache size	4 x 2 MB 16-way set associative shared exclusive caches
Level 3 cache size	8 MB up to 64-way set associative shared cache
Cache latency	3 (L1 cache)
Multiprocessing	Up to 2 processors
Features	MMX instructions Extensions to MMX SSE / Streaming SIMD Extensions SSE2 / Streaming SIMD Extensions 2 SSE3 / Streaming SIMD Extensions 3 SSSE3 / Supplemental Streaming SIMD Extensions 3 SSE4 / SSE4.1 + SSE4.2 / Streaming SIMD Extensions 4 SSE4a AES / Advanced Encryption Standard instructions AVX / Advanced Vector Extensions FMA4 / 4-operand Fused Multiply-Add instructions XOP / eXtended Operations instructions AMD64 / AMD 64-bit technology AMD-V 2.0 / AMD Virtualization technology 2.0 EVP / Enhanced Virus Protection Turbo Core technology
Low power features	AMD-P 2.0 Core C1, C1E, C6 and CC6 states Package S3, S4 and S5 states TDP Power Cap
Integrated peripherals / components
Integrated graphics	None
Memory controller	The number of controllers: 1 Memory channels: 2 Channel width (bits): 72 Supported memory: DDR3-1600 DIMMs per channel: 3 Maximum memory bandwidth (GB/s): 25.6
Other peripherals	HyperTransport 3.0 technology with 2 HT links
Electrical / Thermal parameters
Maximum operating temperature	64°C
Average CPU Power	32 Watt
Thermal Design Power	35 Watt
Notes on AMD Opteron 4256 EE
NorthBridge controller operates at 1.6 GHz

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