AMD Athlon II X4 641 vs AMD A8-3870K. Specifications

Background information about the processors being compared, series, generation and market segment.

• CPU group
  AMD Athlon II X4 (Llano) AMD A8-3000
• Family
  AMD Athlon II AMD A
• Generation
  2 1
• Segment
  Desktop / Server Desktop / Server

Core counts, threads, cache and clock modes describe the CPU configuration. Performance depends on the workload and comparable measured results.

• Base Frequency
  2.8 GHz 3.1 GHz
• Core architecture
  normal normal
• Core Configuration
  4x -
• CPU Cores
  4 4
• CPU Threads
  4 4
• Hyperthreading / SMT
  No No
• Overclocking
  No Yes
• Turbo Frequency (1 Core)
  - No turbo
• Turbo Frequency (4 Cores)
  - No turbo

Internal Graphics does not affect the performance of the CPU, performs the work of the graphics card in its absence or on mobile devices.

• DirectX Version
  - 11
• Execution units
  - 5
• Generation
  - 3
• GPU Frequency
  - 600 MHz
• GPU name
  no iGPU AMD Radeon HD 6550D
• GPU Turbo
  No turbo No turbo
• Max. displays
  - 2
• Max. GPU Memory
  - 1 GB
• Release date
  - Q2/2011
• Shader
  - 400
• Technology
  - 32 nm

Built-in codecs used to encode and decode content. Significantly speeds up the required operations.

• AV1
  No No
• H.264 / AVC
  No Decode
• h265 / HEVC (8 bit)
  No No
• h265 / HEVC (10 bit)
  No No
• JPEG
  No Decode / Encode
• VC-1
  No Decode
• VP8
  No No
• VP9
  No No

Types, channel quantity of RAM supported by AMD A8-3870K and AMD Athlon II X4 641. Depending on the motherboards, higher or lower memory frequencies may be supported.

• ECC
  No No
• Max. Memory
  16 GB -
• Memory Bandwidth
  21.3 GB/s -
• Memory channels
  2 2
• Memory type
  DDR3-1333 DDR3-1600
• PCIe
  2.0 -

• AES-NI
  No No

Compare the TDP requirements of TDP AMD Athlon II X4 641 and AMD A8-3870K Power specifications describe different manufacturer limits. TDP, base power and maximum turbo power are separate values; they do not establish measured system consumption.

• TDP (PL1, legacy label)
  100 W 100 W

Architecture, interfaces, additional instructions supported by AMD Athlon II X4 641 and AMD A8-3870K, virtual machine technologies and process technology.

• Architecture
  Llano Llano (K10)
• Instruction set (ISA)
  x86-64 (64 bit) x86-64 (64 bit)
• ISA extensions
  MMX, 3DNow!, SSE3, SSE4a SSE3, SSE4a
• L2-Cache
  4 MB -
• L3-Cache
  - 4 MB
• Part Number
  AD638XOJGXBOX -
• Release date
  Q1/2012 Q4/2011
• Socket
  FM1 FM1
• Technology
  32 nm 32 nm
• Virtualization
  AMD-V AMD-V