AMD A6-6400K vs AMD FX-4300

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CPU comparison with benchmarks


AMD A6-6400K CPU1 vs CPU2 AMD FX-4300
AMD A6-6400K AMD FX-4300

CPU comparison

AMD A6-6400K or AMD FX-4300 - 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 A6-6400K has 2 cores with 2 threads and clocks with a maximum frequency of 4.10 GHz. Up to GB of memory is supported in 2 memory channels. The AMD A6-6400K was released in Q2/2013.

The AMD FX-4300 has 4 cores with 4 threads and clocks with a maximum frequency of 3.80 GHz. The CPU supports up to GB of memory in 2 memory channels. The AMD FX-4300 was released in Q4/2012.
AMD A (112) Family AMD FX (30)
AMD A6-6000 (3) CPU group AMD FX-4300 (3)
3 Generation 2
Richland (Piledriver) Architecture Vishera (Bulldozer)
Desktop / Server Segment Desktop / Server
-- Predecessor --
-- Successor --

CPU Cores and Base Frequency

The AMD A6-6400K has 2 CPU cores and can calculate 2 threads in parallel. The clock frequency of the AMD A6-6400K is 3.90 GHz (4.10 GHz) while the AMD FX-4300 has 4 CPU cores and 4 threads can calculate simultaneously. The clock frequency of the AMD FX-4300 is at 3.80 GHz.

AMD A6-6400K Characteristic AMD FX-4300
2 Cores 4
2 Threads 4
normal Core architecture normal
No Hyperthreading No
Yes Overclocking ? Yes
3.90 GHz Frequency 3.80 GHz
4.10 GHz Turbo Frequency (1 Core) --
4.10 GHz Turbo Frequency (All Cores) --

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 A6-6400K Characteristic AMD FX-4300
-- AI hardware --
-- AI specifications --

Internal Graphics

The AMD A6-6400K or AMD FX-4300 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 8470D GPU no iGPU
0.80 GHz GPU frequency --
-- GPU (Turbo) --
5 GPU Generation --
32 nm Technology
2 Max. displays
3 Compute units --
192 Shader --
No Hardware Raytracing No
No Frame Generation No
2 GB Max. GPU Memory --
11.2 DirectX Version --

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

Memory & PCIe

The AMD A6-6400K can use up to GB of memory in 2 memory channels. The maximum memory bandwidth is 29.9 GB/s. The AMD FX-4300 supports up to GB of memory in 2 memory channels and achieves a memory bandwidth of up to 29.9 GB/s.

AMD A6-6400K Characteristic AMD FX-4300
DDR3-1866 Memory DDR3-1866
Max. Memory
2 (Dual Channel) Memory channels 2 (Dual Channel)
29.9 GB/s Max. Bandwidth 29.9 GB/s
No ECC Yes
-- L2 Cache --
1.00 MB L3 Cache 4.00 MB
-- PCIe version --
-- PCIe lanes --
-- PCIe Bandwidth --

Thermal Management

The thermal design power (TDP for short) of the AMD A6-6400K is 65 W, while the AMD FX-4300 has a TDP of 95 W. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently.

AMD A6-6400K Characteristic AMD FX-4300
65 W TDP (PL1 / PBP) 95 W
-- TDP (PL2) --
-- TDP up --
-- TDP down --
-- Tjunction max. --

Technical details

The AMD A6-6400K is manufactured in 32 nm and has 1.00 MB cache. The AMD FX-4300 is manufactured in 32 nm and has a 4.00 MB cache.

AMD A6-6400K Characteristic AMD FX-4300
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 SSE4.1, SSE4.2, AVX, FMA3, FMA4
FM2 Socket AM3+
AMD-V Virtualization AMD-V
Yes AES-NI Yes
Windows 10, Linux Operating systems Windows 10, Linux
Q2/2013 Release date Q4/2012
55 $ Release price 85 $
show more data show more data


Rate these processors

Here you can rate the AMD A6-6400K to help other visitors make their purchasing decisions. The average rating is 4.0 stars (1 ratings). Rate now:
Here you can rate the AMD FX-4300 to help other visitors make their purchasing decisions. The average rating is 4.0 stars (1 ratings). Rate now:


Average performance in benchmarks

⌀ Single core performance in 1 CPU benchmarks
AMD A6-6400K (92%)
AMD FX-4300 (100%)
⌀ Multi core performance in 3 CPU benchmarks
AMD A6-6400K (51%)
AMD FX-4300 (100%)

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 A6-6400K AMD A6-6400K
2C 2T @ 4.10 GHz
471 (92%)
AMD FX-4300 AMD FX-4300
4C 4T @ 3.80 GHz
511 (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 A6-6400K AMD A6-6400K
2C 2T @ 4.10 GHz
723 (52%)
AMD FX-4300 AMD FX-4300
4C 4T @ 3.80 GHz
1394 (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 A6-6400K AMD A6-6400K
2C 2T @ 4.10 GHz
2397 (51%)
AMD FX-4300 AMD FX-4300
4C 4T @ 3.80 GHz
4713 (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 A6-6400K AMD A6-6400K
2C 2T @ 3.90 GHz
370 (50%)
AMD FX-4300 AMD FX-4300
4C 4T @ 3.80 GHz
739 (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 A6-6400K AMD A6-6400K
2C 2T @ 4.10 GHz
252 (100%)
AMD FX-4300 AMD FX-4300
4C 4T @ 3.80 GHz
0 (0%)

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 A6-6400K AMD A6-6400K
AMD Radeon HD 8470D @ 0.80 GHz
307 (100%)
AMD FX-4300 AMD FX-4300
@ 0.00 GHz
0 (0%)

CPU-Z Benchmark 17 (Single-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 A6-6400K AMD A6-6400K
2C 2T @ 4.10 GHz
0 (0%)
AMD FX-4300 AMD FX-4300
4C 4T @ 3.80 GHz
224 (100%)

Devices using this processor

AMD A6-6400K AMD FX-4300
Unknown Unknown

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