AMD A8-4500M vs AMD A6-6400K

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CPU comparison with benchmarks


AMD A8-4500M CPU1 vs CPU2 AMD A6-6400K
AMD A8-4500M AMD A6-6400K

CPU comparison

AMD A8-4500M 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 A8-4500M has 4 cores with 4 threads and clocks with a maximum frequency of 2.80 GHz. Up to GB of memory is supported in 2 memory channels. The AMD A8-4500M was released in Q2/2012.

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 A8-4000M (2) CPU group AMD A6-6000 (3)
2 Generation 3
Trinity (Piledriver) Architecture Richland (Piledriver)
Mobile Segment Desktop / Server
-- Predecessor --
-- Successor --

CPU Cores and Base Frequency

The AMD A8-4500M has 4 CPU cores and can calculate 4 threads in parallel. The clock frequency of the AMD A8-4500M is 1.90 GHz (2.80 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 A8-4500M Characteristic AMD A6-6400K
4 Cores 2
4 Threads 2
normal Core architecture normal
No Hyperthreading No
No Overclocking ? Yes
1.90 GHz Frequency 3.90 GHz
2.80 GHz Turbo Frequency (1 Core) 4.10 GHz
2.80 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 A8-4500M Characteristic AMD A6-6400K
-- AI hardware --
-- AI specifications --

Internal Graphics

The AMD A8-4500M 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 7640G GPU AMD Radeon HD 8470D
0.50 GHz GPU frequency 0.80 GHz
0.69 GHz GPU (Turbo) --
4 GPU Generation 5
32 nm Technology 32 nm
2 Max. displays 2
4 Compute units 3
256 Shader 192
No Hardware Raytracing No
No Frame Generation No
2 GB Max. GPU Memory 2 GB
11 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 7640G 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 A8-4500M can use up to GB of memory in 2 memory channels. The maximum memory bandwidth is 25.6 GB/s. The AMD A6-6400K supports up to GB of memory in 2 memory channels and achieves a memory bandwidth of up to --.

AMD A8-4500M Characteristic AMD A6-6400K
DDR3-1600 Memory DDR3-1866
Max. Memory
2 (Dual Channel) Memory channels 2 (Dual Channel)
25.6 GB/s Max. Bandwidth --
No ECC No
-- L2 Cache --
4.00 MB L3 Cache 1.00 MB
-- PCIe version --
-- PCIe lanes --
-- PCIe Bandwidth --

Thermal Management

The thermal design power (TDP for short) of the AMD A8-4500M is 35 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 A8-4500M Characteristic AMD A6-6400K
35 W TDP (PL1 / PBP) 65 W
-- TDP (PL2) --
-- TDP up --
-- TDP down --
-- Tjunction max. --

Technical details

The AMD A8-4500M is manufactured in 32 nm and has 4.00 MB cache. The AMD A6-6400K is manufactured in 32 nm and has a 1.00 MB cache.

AMD A8-4500M 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
FS1r2 Socket FM2
AMD-V Virtualization AMD-V
Yes AES-NI Yes
Operating systems Windows 10, Linux
Q2/2012 Release date Q2/2013
-- Release price 55 $
show more data show more data


Rate these processors

Here you can rate the AMD A8-4500M to help other visitors make their purchasing decisions. The average rating is 3.0 stars (2 ratings). Rate now:
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:


Average performance in benchmarks

⌀ Single core performance in 1 CPU benchmarks
⌀ Multi core performance in 4 CPU benchmarks

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 A8-4500M AMD A8-4500M
4C 4T @ 2.80 GHz
316 (67%)
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 A8-4500M AMD A8-4500M
4C 4T @ 2.80 GHz
844 (100%)
AMD A6-6400K AMD A6-6400K
2C 2T @ 4.10 GHz
723 (86%)

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 A8-4500M AMD A8-4500M
4C 4T @ 2.80 GHz
285 (100%)
AMD A6-6400K AMD A6-6400K
2C 2T @ 4.10 GHz
252 (88%)

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 A8-4500M AMD A8-4500M
AMD Radeon HD 7640G @ 0.69 GHz
351 (100%)
AMD A6-6400K AMD A6-6400K
AMD Radeon HD 8470D @ 0.80 GHz
307 (87%)

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 A8-4500M AMD A8-4500M
4C 4T @ 2.80 GHz
2702 (100%)
AMD A6-6400K AMD A6-6400K
2C 2T @ 4.10 GHz
2397 (89%)

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 A8-4500M AMD A8-4500M
4C 4T @ 1.90 GHz
389 (100%)
AMD A6-6400K AMD A6-6400K
2C 2T @ 3.90 GHz
370 (95%)

Cinebench R20 (Single-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 single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
AMD A8-4500M AMD A8-4500M
4C 4T @ 2.80 GHz
93 (100%)
AMD A6-6400K AMD A6-6400K
2C 2T @ 4.10 GHz
0 (0%)

Cinebench R15 (Single-Core)

Cinebench R15 is the successor of Cinebench 11.5 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
AMD A8-4500M AMD A8-4500M
4C 4T @ 2.80 GHz
61 (100%)
AMD A6-6400K AMD A6-6400K
2C 2T @ 4.10 GHz
0 (0%)

Cinebench R15 (Multi-Core)

Cinebench R15 is the successor of Cinebench 11.5 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 A8-4500M AMD A8-4500M
4C 4T @ 2.80 GHz
158 (100%)
AMD A6-6400K AMD A6-6400K
2C 2T @ 4.10 GHz
0 (0%)

Devices using this processor

AMD A8-4500M AMD A6-6400K
Unknown Unknown

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