AMD A6-6400K vs AMD A6-6420K. Specifications, performance, tests

Comprehensive background on the processors being compared, detailing their series, generation, and targeted market segment.

• Segment
  Desktop / Server Desktop / Server
• Family
  AMD A AMD A
• Generation
  3 3
• CPU group
  AMD A6-6000 AMD A6-6000

Essential parameters including the number of cores, threads, base and turbo frequencies, and cache size. These metrics provide insight into the processor’s speed—higher values generally indicate better performance.

• Frequency
  3.90 GHz 4.00 GHz
• CPU Cores
  2 2
• Turbo (1 Core)
  4.10 GHz 4.20 GHz
• CPU Threads
  2 2
• Turbo (2 Cores)
  4.10 GHz 4.20 GHz
• Hyperthreading
  No No
• Overclocking
  Yes Yes
• Core architecture
  normal normal

The integrated graphics (iGPU) do not influence the CPU performance significantly; they serve as a substitute for a dedicated graphics card in the absence of one or are utilized in mobile devices.

• GPU name
  AMD Radeon HD 8470D AMD Radeon HD 8470D
• GPU frequency
  0.80 GHz 0.80 GHz
• GPU (Turbo)
  No turbo No turbo
• Execution units
  3 3
• Shader
  192 192
• Max. GPU Memory
  2 GB 2 GB
• Max. displays
  2 2
• Generation
  5 5
• DirectX Version
  11.2 11.2
• Technology
  32 nm 32 nm
• Release date
  Q2/2013 Q2/2013

This section details the built-in codecs used for encoding and decoding media content, which significantly enhance processing speed and efficiency.

• h265 / HEVC (8 bit)
  No No
• h265 / HEVC (10 bit)
  No No
• h264
  Decode Decode
• VP9
  No No
• VP8
  No No
• AV1
  No No
• AVC
  Decode Decode
• VC-1
  Decode Decode
• JPEG
  Decode / Encode Decode / Encode

Overview of the types and quantities of RAM supported by AMD A6-6420K and AMD A6-6400K. The supported memory frequencies may vary depending on the motherboard configuration.

• Memory type
  DDR3-1866 DDR3-1866
• ECC
  No No
• Memory channels
  2 2

• AES-NI
  Yes Yes

Analyze the TDP (Thermal Design Power) requirements of AMD A6-6400K and AMD A6-6420K to make an informed decision on the appropriate cooling system. Remember that TDP refers to thermal watts, not electrical watts.

• TDP (PL1)
  65 W 65 W

Information on architecture, interfaces, and additional instructions supported by AMD A6-6400K and AMD A6-6420K, including virtual machine technologies and fabrication processes.

• Instruction set (ISA)
  x86-64 (64 bit) x86-64 (64 bit)
• Virtualization
  AMD-V AMD-V
• ISA extensions
  SSE4a, SSE4.1, SSE4.2, AVX, FMA3, FMA4 SSE4a, SSE4.1, SSE4.2, AVX, FMA3, FMA4
• L3-Cache
  1.00 MB 1.00 MB
• Architecture
  Richland (Piledriver) Richland (Piledriver)
• Technology
  32 nm 32 nm
• Socket
  FM2 FM2
• Release date
  Q2/2013 Q1/2014