General information
Type CPU / Microprocessor
Market segment Desktop
Family AMD A8-Series
Model number ? A8-3870K
CPU part numbers
AD3870WNZ43GX is an OEM/tray microprocessor
AD3870WNGXBOX is a boxed microprocessor with fan and heatsink
Frequency ? 3 GHz / 3000 MHz
Package 905-pin organic lidded micro Pin Grid Array (UOF905)
AMD Package numbers 31012
Socket Socket FM1
Size 1.57" x 1.57" / 4cm x 4cm
Weight 1.4oz / 39g
Fan/heatsink FHSA7015B-1268
Introduction date Dec 20, 2011
Price at introduction $135
Architecture / Microarchitecture
Instruction set x86
Microarchitecture K10
Platform Lynx
Processor core ? Llano
Core stepping ? LN-B0
CPUID 300F10
Manufacturing process 0.032 micron
1178 million transistors
Die 227mm2
Data width 64 bit
The number of CPU cores 4
The number of threads 4
Floating Point Unit Integrated
Level 1 cache size ? 4 x 64 KB instruction caches
4 x 64 KB data caches
Level 2 cache size ? 4 x 1 MB
Level 3 cache size None
Cache latency 3 (L1 cache)
21 (L2 cache)
Multiprocessing Uniprocessor
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 Features EVP / Enhanced Virus Protection ?
Low power features PowerNow!
Integrated Graphics Processing Unit
GPU Type Radeon HD 6550D
Shader cores 400
Base frequency (MHz) 600
Integrated peripherals / components
Memory controller The number of controllers: 1
Memory channels (per controller): 2
Memory channels (total): 2
Supported memory: DDR3-1866
Other peripherals
PCI Express 2.0
Unified Video Decoder 3.0 ?
Electrical / Thermal parameters
V core ? 0.45V - 1.4125V
Maximum operating temperature ? 72.7°C
Thermal Design Power ? 100 Watt
