AMD A4-6320 vs AMD A6-6400K

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CPU comparison with benchmarks


AMD A4-6320 CPU1 vs CPU2 AMD A6-6400K
AMD A4-6320 AMD A6-6400K

CPU comparison

AMD A4-6320 or AMD A6-6400K - which processor is faster? In this comparison we look at the differences and analyze which of these two CPUs is better. We compare the technical data and benchmark results.

The AMD A4-6320 has 2 cores with 2 threads and clocks with a maximum frequency of 4.00 GHz. Up to GB of memory is supported in 2 memory channels. The AMD A4-6320 was released in Q1/2014.

The AMD A6-6400K has 2 cores with 2 threads and clocks with a maximum frequency of 4.10 GHz. The CPU supports up to GB of memory in 2 memory channels. The AMD A6-6400K was released in Q2/2013.
AMD A (112) Family AMD A (112)
AMD A4-6000 (3) CPU group AMD A6-6000 (3)
3 Generation 3
Richland (Piledriver) Architecture Richland (Piledriver)
Desktop / Server Segment Desktop / Server
-- Predecessor --
-- Successor --

CPU Cores and Base Frequency

The AMD A4-6320 has 2 CPU cores and can calculate 2 threads in parallel. The clock frequency of the AMD A4-6320 is 3.80 GHz (4.00 GHz) while the AMD A6-6400K has 2 CPU cores and 2 threads can calculate simultaneously. The clock frequency of the AMD A6-6400K is at 3.90 GHz (4.10 GHz).

AMD A4-6320 Characteristic AMD A6-6400K
2 Cores 2
2 Threads 2
normal Core architecture normal
No Hyperthreading No
Yes Overclocking ? Yes
3.80 GHz Frequency 3.90 GHz
4.00 GHz Turbo Frequency (1 Core) 4.10 GHz
4.00 GHz Turbo Frequency (All Cores) 4.10 GHz

Artificial Intelligence and Machine Learning

Processors with the support of artificial intelligence (AI) and machine learning (ML) can process many calculations, especially audio, image and video processing, much faster than classic processors. Algorithms for ML improve their performance the more data they have collected via software. ML tasks can be processed up to 10,000 times faster than with a classic processor.

AMD A4-6320 Characteristic AMD A6-6400K
-- AI hardware --
-- AI specifications --

Internal Graphics

The AMD A4-6320 or AMD A6-6400K has integrated graphics, called iGPU for short. The iGPU uses the system's main memory as graphics memory and sits on the processor's die.

AMD Radeon HD 8370D GPU AMD Radeon HD 8470D
0.76 GHz GPU frequency 0.80 GHz
-- GPU (Turbo) --
5 GPU Generation 5
32 nm Technology 32 nm
2 Max. displays 2
2 Compute units 3
128 Shader 192
No Hardware Raytracing No
No Frame Generation No
2 GB Max. GPU Memory 2 GB
11.2 DirectX Version 11.2

Hardware codec support

A photo or video codec that is accelerated in hardware can greatly accelerate the working speed of a processor and extend the battery life of notebooks or smartphones when playing videos.

AMD Radeon HD 8370D GPU AMD Radeon HD 8470D
No Codec h265 / HEVC (8 bit) No
No Codec h265 / HEVC (10 bit) No
Decode Codec h264 Decode
No Codec VP9 No
No Codec VP8 No
No Codec AV1 No
Decode Codec AVC Decode
Decode Codec VC-1 Decode
Decode / Encode Codec JPEG Decode / Encode

Memory & PCIe

The AMD A4-6320 can use up to GB of memory in 2 memory channels. The maximum memory bandwidth is --. The AMD A6-6400K supports up to GB of memory in 2 memory channels and achieves a memory bandwidth of up to --.

AMD A4-6320 Characteristic AMD A6-6400K
DDR3-1866 Memory DDR3-1866
Max. Memory
2 (Dual Channel) Memory channels 2 (Dual Channel)
-- Max. Bandwidth --
No ECC No
-- L2 Cache --
1.00 MB L3 Cache 1.00 MB
-- PCIe version --
-- PCIe lanes --
-- PCIe Bandwidth --

Thermal Management

The thermal design power (TDP for short) of the AMD A4-6320 is 65 W, while the AMD A6-6400K has a TDP of 65 W. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently.

AMD A4-6320 Characteristic AMD A6-6400K
65 W TDP (PL1 / PBP) 65 W
-- TDP (PL2) --
-- TDP up --
-- TDP down --
-- Tjunction max. --

Technical details

The AMD A4-6320 is manufactured in 32 nm and has 1.00 MB cache. The AMD A6-6400K is manufactured in 32 nm and has a 1.00 MB cache.

AMD A4-6320 Characteristic AMD A6-6400K
32 nm Technology 32 nm
Unknown Chip design Unknown
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
SSE4a, SSE4.1, SSE4.2, AVX, FMA3, FMA4 ISA extensions SSE4a, SSE4.1, SSE4.2, AVX, FMA3, FMA4
FM2 Socket FM2
AMD-V Virtualization AMD-V
Yes AES-NI Yes
Windows 10, Linux Operating systems Windows 10, Linux
Q1/2014 Release date Q2/2013
45 $ Release price 55 $
show more data show more data


iGPU - FP32 Performance (Single-precision GFLOPS)

The theoretical computing performance of the internal graphics unit of the processor with simple accuracy (32 bit) in GFLOPS. GFLOPS indicates how many billion floating point operations the iGPU can perform per second.
AMD A4-6320 AMD A4-6320
AMD Radeon HD 8370D @ 0.76 GHz
195 (64%)
AMD A6-6400K AMD A6-6400K
AMD Radeon HD 8470D @ 0.80 GHz
307 (100%)

Estimated results for PassMark CPU Mark

Some of the CPUs listed below have been benchmarked by CPU-monkey. However the majority of CPUs have not been tested and the results have been estimated by a CPU-monkey’s secret proprietary formula. As such they do not accurately reflect the actual Passmark CPU mark values and are not endorsed by PassMark Software Pty Ltd.
AMD A4-6320 AMD A4-6320
2C 2T @ 4.00 GHz
2512 (100%)
AMD A6-6400K AMD A6-6400K
2C 2T @ 4.10 GHz
2397 (95%)

Geekbench 5, 64bit (Single-Core)

Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
AMD A4-6320 AMD A4-6320
2C 2T @ 4.00 GHz
0 (0%)
AMD A6-6400K AMD A6-6400K
2C 2T @ 4.10 GHz
471 (100%)

Geekbench 5, 64bit (Multi-Core)

Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
AMD A4-6320 AMD A4-6320
2C 2T @ 4.00 GHz
0 (0%)
AMD A6-6400K AMD A6-6400K
2C 2T @ 4.10 GHz
723 (100%)

Cinebench R20 (Multi-Core)

Cinebench R20 is the successor of Cinebench R15 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
AMD A4-6320 AMD A4-6320
2C 2T @ 4.00 GHz
0 (0%)
AMD A6-6400K AMD A6-6400K
2C 2T @ 4.10 GHz
252 (100%)

CPU-Z Benchmark 17 (Multi-Core)

The CPU-Z benchmark measures a processor's performance by measuring the time it takes the system to complete all benchmark calculations. The faster the benchmark is completed, the higher the score.
AMD A4-6320 AMD A4-6320
2C 2T @ 3.80 GHz
0 (0%)
AMD A6-6400K AMD A6-6400K
2C 2T @ 3.90 GHz
370 (100%)

Devices using this processor

AMD A4-6320 AMD A6-6400K
Unknown Unknown

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