General information

Type

CPU / Microprocessor

Market segment

Desktop

Family

AMD Athlon X4

Model number?

870K

CPU part numbers

• AD870KXBI44JCis an OEM/tray microprocessor

• AD870KXBJCBOXis a boxed microprocessor with fan and heatsink

• AD870KXBJCSBXis a boxed microprocessor with low-noise fan and heatsink

Frequency?

3900 MHz

Turbo frequency

4100 MHz

Package

906-pin lidded micro-PGA package

Socket

Socket FM2+

Size

1.57" x 1.57" / 4cm x 4cm

Introduction date

4th quarter 2015[1]

Architecture / Microarchitecture

Microarchitecture

Steamroller

Processor core?

Godavari

Core stepping?

A1

CPUID

630F81

Manufacturing process

0.028 micron

Data width

64 bit

The number of CPU cores

4

The number of threads

4

Floating Point Unit

Integrated

Level 1 cache size?

2 x 96 KB 3-way set associative shared instruction caches4 x 16 KB 4-way set associative data caches

Level 2 cache size?

2 x 2 MB 16-way set associative shared caches

Level 3 cache size

None

Multiprocessing

Uniprocessor

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

• BMI1 / Bit Manipulation instructions 1

• F16C / 16-bit Floating-Point conversion instructions

• FMA3 / 3-operand Fused Multiply-Add instructions

• FMA4 / 4-operand Fused Multiply-Add instructions

• TBM / Trailing Bit Manipulation instructions

• XOP / eXtended Operations instructions

• AMD64 / AMD 64-bit technology?

• AMD-V / AMD Virtualization technology

• EVP / Enhanced Virus Protection?

• Turbo Core 3.0 technology

Low power features

PowerNow!

Integrated peripherals / components

Integrated graphics

None

Memory controller

The number of controllers: 1Memory channels: 2Supported memory: DDR3-2133Maximum memory bandwidth (GB/s): 34.1

Other peripherals

• PCI Express 3.0 interface

• Unified Video Decoder?

• Video Coding Engine?

Electrical / Thermal parameters

Maximum operating temperature?

72.4°C

Thermal Design Power?

95 Watt