AMD A6-6400K vs AMD FX-8300. Specifications, performance, tests

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

• CPU group
  AMD A6-6000 AMD FX-8000
• Family
  AMD A FX-Series
• Generation
  3 2
• Segment
  Desktop / Server Desktop / Server
• Form Factor
  - Desktops
• Series
  - FX 8-Core Black Edition Processors

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

• Base Frequency
  3.9 GHz 3.3 GHz
• Core architecture
  normal normal
• CPU Cores
  2 8
• CPU Threads
  2 8
• Hyperthreading / SMT
  No No
• Overclocking
  Yes Yes
• Turbo Frequency (1 Core)
  4.1 GHz 4.2 GHz
• Turbo Frequency (2 Cores)
  4.1 GHz -
• Max. Boost Clock
  - 4.2 GHz
• Turbo Frequency (8 Cores)
  - 4 GHz

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
  11.2 -
• Execution units
  3 -
• Generation
  5 -
• GPU Frequency
  800 MHz -
• GPU name
  AMD Radeon HD 8470D None
• GPU Turbo
  No turbo No turbo
• Max. displays
  2 -
• Max. GPU Memory
  2 GB -
• Release date
  Q2/2013 -
• Shader
  192 -
• Technology
  32 nm -

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

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

Types, channel quantity of RAM supported by AMD FX-8300 and AMD A6-6400K. Depending on the motherboards, higher or lower memory frequencies may be supported.

• ECC
  No Yes
• Memory channels
  2 2
• Memory type
  DDR3-1866 DDR3
• System Memory Specification
  - 1866

• AES-NI
  Yes Yes

Compare the TDP requirements of TDP AMD A6-6400K and AMD FX-8300 Power specifications describe different manufacturer limits. TDP, base power and maximum turbo power are separate values; they do not establish measured system consumption.

• Maximum Operating Temperature
  - 70.5 °C
• TDP (PL1, legacy label)
  65 W 95 W
• Default TDP
  - 95 W

Architecture, interfaces, additional instructions supported by AMD A6-6400K and AMD FX-8300, virtual machine technologies and process technology.

• Architecture
  Richland (Piledriver) Vishera (Bulldozer)
• Instruction set (ISA)
  x86-64 (64 bit) x86-64 (64 bit)
• ISA extensions
  SSE4a, SSE4.1, SSE4.2, AVX, FMA3, FMA4 SSE4.1, SSE4.2, AVX, FMA3, FMA4
• L2-Cache
  - 8 MB
• L3-Cache
  1 MB 8 MB
• Release date
  Q2/2013 Q2/2013
• Socket
  FM2 AM3+
• Technology
  32 nm 32nm SOI
• Virtualization
  AMD-V AMD-V
• Codename
  - Vishera
• L1-Cache
  - 0.375 MB
• Manufacturer product ID (boxed)
  - FD8300WMHKBOX
• Manufacturer product ID (tray)
  - FD8300WMW8KHK
• Official source
  - https://www.amd.com/en/products/specifications/processors.html
• Verification scope
  - Explicit manufacturer fields refreshed; other original historical fields retained, not all reverified. Partial composite conflicts are preserved.
• Verified on
  - 2026-10-01