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AMD A8-3870K

4
Cores
4
Threads
100 W
TDP
3 GHz
Frequency
N/A
Boost
Llano
Codename
Socket FM1
Socket
Front
Front
AMD Socket FM1
AMD Socket FM1
The AMD A8-3870K was a desktop processor with 4 cores, launched in December 2011. It is part of the A8 lineup, using the Llano architecture with Socket FM1. A8-3870K has 1MB of L2 cache and operates at 3 GHz. AMD is making the A8-3870K on a 32 nm production node using 1,178 million transistors. The silicon die of the chip is not fabricated at AMD, but at the foundry of GlobalFoundries. You may freely adjust the unlocked multiplier on A8-3870K, which simplifies overclocking greatly, as you can easily dial in any overclocking frequency.
With a TDP of 100 W, the A8-3870K consumes a good deal of power, so decent cooling is needed. AMD's processor supports DDR3 memory with a dual-channel interface. The highest officially supported memory speed is 1866 MHz, but with overclocking (and the right memory modules) you can go even higher. This processor features the Radeon HD 6550D integrated graphics solution.
Hardware virtualization is available on the A8-3870K, which greatly improves virtual machine performance.

Physical

Socket: AMD Socket FM1
Foundry: GlobalFoundries
Process Size: 32 nm
Transistors: 1,178 million
Die Size: 228 mm²
Package: µPGA

Performance

Frequency: 3 GHz
Turbo Clock: N/A
Base Clock: 100 MHz
Multiplier: 30.0x
Multiplier Unlocked: Yes
Voltage: 1.4125 V
TDP: 100 W

Architecture

Market: Desktop
Production Status: End-of-life
Release Date: Dec 20th, 2011
Codename: Llano
Generation: A8
(Llano)
Part#: AD3870WNZ43GX
AD3870WNGXBOX
Memory Support: DDR3-1866 MHz
Dual-channel
ECC Memory: No
Chipsets: A75, A55

Cores

# of Cores: 4
# of Threads: 4
SMP # CPUs: 1
Integrated Graphics: Radeon HD 6550D

Cache

Cache L1: 128K (per core)
Cache L2: 1MB (per core)

Features

  • MMX
  • 3DNow!
  • SSE
  • SSE2
  • SSE3
  • SSE4A
  • AMD64
  • CnQ
  • NX bit
  • AMD-V

Notes

This processor comes with an unlocked base clock multiplier, allowing users to set the multiplier value higher than shipped value, to facilitate better overclocking.
Jul 6th, 2022 00:30 EDT change timezone

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