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

Overall score
star star star star star
Released
Q2/2013
AMD A6-6400K
AMD A6-6400K
Released
Q1/2014
Overall score
star star star star star
AMD A6-6420K
AMD A6-6420K

What's the best choice AMD A6-6400K or AMD A6-6420K? Which processor is faster?

We have prepared a comparison to help you choose the best processor. Compare their specifications and benchmarks.

AMD A6-6400K has a maximum frequency of 3.90 GHz. 2 Cores. Power consumption of 65 W. Released in Q2/2013.

AMD A6-6420K has a maximum frequency of 4.00 GHz. 2 Cores. Power consumption of 65 W. Released in Q1/2014.

Differences

AMD A6-6400K Reasons to consider
AMD A6-6400K
Report a bug
  • Place in the overall ranking

    (based on several benchmarks)

    1502 left arrow score

Positions in all rankings

Common positions AMD A6-6400K CPU in popular benchmarks, for comparison with other models.

  • Cinebench R20 (Multi-Core)
    522 place
  • Geekbench 5, 64bit (Single-Core)
    1174 place
  • Geekbench 5, 64bit (Multi-Core)
    1426 place
  • iGPU - FP32 Performance (Single-precision GFLOPS)
    1144 place
  • Geekbench 3, 64bit (Single-Core)
    610 place
  • Geekbench 3, 64bit (Multi-Core)
    753 place
  • Cinebench R11.5, 64bit (Single-Core)
    697 place
  • Cinebench R11.5, 64bit (Multi-Core)
    750 place
  • Estimated results for PassMark CPU Mark
    1157 place
AMD A6-6420K Reasons to consider
AMD A6-6420K
Report a bug
  • Place in the overall ranking

    (based on several benchmarks)

    1399 left arrow score
  • Higher clock speed

    Around 3% better clock speed

    4.00 GHz left arrow 3.90 GHz
  • Higher turbo clock speed

    Around 2 % better overclocked clock speed

    4.20 GHz left arrow 4.10 GHz

Positions in all rankings

Common positions AMD A6-6420K CPU in popular benchmarks, for comparison with other models.

  • iGPU - FP32 Performance (Single-precision GFLOPS)
    1150 place
  • Geekbench 3, 64bit (Single-Core)
    597 place
  • Geekbench 3, 64bit (Multi-Core)
    750 place
  • Cinebench R11.5, 64bit (Single-Core)
    620 place
  • Cinebench R11.5, 64bit (Multi-Core)
    735 place
  • Estimated results for PassMark CPU Mark
    1146 place

Specifications

Technical data
AMD A6-6400K AMD A6-6400K
AMD A6-6420K AMD A6-6420K
CPU family and group

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

  • Segment
    Desktop / Server left arrow Desktop / Server
  • Family
    AMD A left arrow AMD A
  • Generation
    3 left arrow 3
  • CPU group
    AMD A6-6000 left arrow AMD A6-6000
CPU Technical specs

Basic parameters such as number of cores, number of threads, base and turbo frequency, and cache size. These parameters indirectly tell about the speed of the processor, the higher they are the better.

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

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

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

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

  • h265 / HEVC (8 bit)
    No left arrow No
  • h265 / HEVC (10 bit)
    No left arrow No
  • h264
    Decode left arrow Decode
  • VP9
    No left arrow No
  • VP8
    No left arrow No
  • AV1
    No left arrow No
  • AVC
    Decode left arrow Decode
  • VC-1
    Decode left arrow Decode
  • JPEG
    Decode / Encode left arrow Decode / Encode
Memory specs & PCI

Types, channel quantity of RAM supported by AMD A6-6420K and AMD A6-6400K. Depending on the motherboards, higher or lower memory frequencies may be supported.

  • Memory type
    DDR3-1866 left arrow DDR3-1866
  • ECC
    No left arrow No
  • Memory channels
    2 left arrow 2
Encryption
  • AES-NI
    Yes left arrow Yes
Thermal Management

Compare the TDP requirements of TDP AMD A6-6400K and AMD A6-6420K to select a cooling system. Note, the TDP value refers to thermal watts, not electrical watts.

  • TDP (PL1)
    65 W left arrow 65 W
Technologies and extensions

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

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

Benchmarks

Performance tests CPUs

Based on the results of several benchmarks, you can more accurately estimate the difference in performance between AMD A6-6400K and AMD A6-6420K.

Compare the synthetic test values and choose the best processor!

iGPU - FP32 Performance (Single-precision GFLOPS)
The performance of the iGPU - the internal GPU in games
307
AMD A6-6400K
307
AMD A6-6420K
Geekbench 3, 64bit (Single-Core)
Geekbench 3 SC for one CPU core, includes stress tests simulating real 3D scenarios for Windows, Mac, Linux, Ansroid, iOS
2063
AMD A6-6400K
2118
AMD A6-6420K
Geekbench 3, 64bit (Multi-Core)
Geekbench 3 MC using a multi-core and hyperthreading, includes stress tests simulating real 3D scenarios for Windows, Mac, Linux, Ansroid, iOS
3292
AMD A6-6400K
3376
AMD A6-6420K
Cinebench R11.5, 64bit (Single-Core)
The PC CPU and GPU test involves rendering a specific 3D scene in single-core mode, based on CINEMA 4D
0.83
AMD A6-6400K
0.85
AMD A6-6420K
Cinebench R11.5, 64bit (Multi-Core)
The PC CPU and GPU test involves rendering a specific 3D scene in multi-core mode and hyperthreading, based on CINEMA 4D
1.66
AMD A6-6400K
1.7
AMD A6-6420K
Estimated results for PassMark CPU Mark
PassMark is a test suite that performs complex mathematical calculations to determine CPU performance on file compression, encryption and physics-related tasks
2397
AMD A6-6400K
2458
AMD A6-6420K

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