Samsung Exynos 5420 vs AMD A8-7670K

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CPU comparison with benchmarks


Samsung Exynos 5420 CPU1 vs CPU2 AMD A8-7670K
Samsung Exynos 5420 AMD A8-7670K

CPU comparison

Samsung Exynos 5420 or AMD A8-7670K - 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 Samsung Exynos 5420 has 8 cores with 8 threads and clocks with a maximum frequency of 1.90 GHz. Up to GB of memory is supported in 0 memory channels. The Samsung Exynos 5420 was released in Q3/2013.

The AMD A8-7670K has 4 cores with 4 threads and clocks with a maximum frequency of 3.90 GHz. The CPU supports up to GB of memory in 2 memory channels. The AMD A8-7670K was released in Q2/2015.
Samsung Exynos (46) Family AMD A (112)
Samsung Exynos 5260/5410/5420/5422/5800 (5) CPU group AMD A8-7000 (6)
3 Generation 4
Cortex-A15 / Cortex-A7 Architecture Kaveri (Steamroller)
Mobile Segment Mobile
-- Predecessor --
-- Successor --

CPU Cores and Base Frequency

The Samsung Exynos 5420 has 8 CPU cores and can calculate 8 threads in parallel. The clock frequency of the Samsung Exynos 5420 is 1.90 GHz while the AMD A8-7670K has 4 CPU cores and 4 threads can calculate simultaneously. The clock frequency of the AMD A8-7670K is at 3.60 GHz (3.90 GHz).
Samsung Exynos 5420 Characteristic AMD A8-7670K
8 Cores 4
8 Threads 4
hybrid (big.LITTLE) Core architecture normal
No Hyperthreading No
No Overclocking ? Yes
1.90 GHz
4x Cortex-A15		 A-Core 3.60 GHz (3.90 GHz)
1.30 GHz
4x Cortex-A7		 B-Core --

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.
Samsung Exynos 5420 Characteristic AMD A8-7670K
-- AI hardware --
-- AI specifications --

Internal Graphics

The Samsung Exynos 5420 or AMD A8-7670K 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.
ARM Mali-T628 MP6 GPU AMD Radeon R7 - 384 (Kaveri)
0.53 GHz GPU frequency 0.76 GHz
-- GPU (Turbo) --
Midgard 2 GPU Generation 6
32nm Technology 28 nm
1 Max. displays 2
6 Compute units 6
96 Shader 384
No Hardware Raytracing No
No Frame Generation No
-- Max. GPU Memory 2 GB
11 DirectX Version 12

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.
ARM Mali-T628 MP6 GPU AMD Radeon R7 - 384 (Kaveri)
No Codec h265 / HEVC (8 bit) No
No Codec h265 / HEVC (10 bit) No
Decode / Encode Codec h264 Decode
No Codec VP9 No
Decode / Encode Codec VP8 No
No Codec AV1 No
No Codec AVC Decode
No Codec VC-1 Decode
No Codec JPEG Decode / Encode

Memory & PCIe

The Samsung Exynos 5420 can use up to GB of memory in 0 memory channels. The maximum memory bandwidth is --. The AMD A8-7670K supports up to GB of memory in 2 memory channels and achieves a memory bandwidth of up to 34.2 GB/s.
Samsung Exynos 5420 Characteristic AMD A8-7670K
LPDDR3e-933 Memory DDR3-2133
Max. Memory
0 Memory channels 2 (Dual Channel)
-- Max. Bandwidth 34.2 GB/s
No ECC Yes
2.50 MB L2 Cache --
-- L3 Cache 4.00 MB
-- PCIe version 3.0
-- PCIe lanes 16
-- PCIe Bandwidth 15.8 GB/s

Thermal Management

The thermal design power (TDP for short) of the Samsung Exynos 5420 is --, while the AMD A8-7670K has a TDP of 95 W. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently.
Samsung Exynos 5420 Characteristic AMD A8-7670K
-- TDP (PL1 / PBP) 95 W
-- TDP (PL2) --
-- TDP up --
-- TDP down --
-- Tjunction max. --

Technical details

The Samsung Exynos 5420 is manufactured in 28 nm and has 2.50 MB cache. The AMD A8-7670K is manufactured in 28 nm and has a 4.00 MB cache.
Samsung Exynos 5420 Characteristic AMD A8-7670K
28 nm Technology 28 nm
Unknown Chip design Unknown
Armv7-A (32 bit) Instruction set (ISA) x86-64 (64 bit)
-- ISA extensions SSE4a, SSE4.1, SSE4.2, AVX, FMA3, FMA4
-- Socket FM2+
None Virtualization AMD-V
No AES-NI Yes
Android Operating systems
Q3/2013 Release date Q2/2015
-- Release price 120 $
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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.
Samsung Exynos 5420 Samsung Exynos 5420
ARM Mali-T628 MP6 @ 0.53 GHz
102 (18%)
AMD A8-7670K AMD A8-7670K
AMD Radeon R7 - 384 (Kaveri) @ 0.76 GHz
581 (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.
Samsung Exynos 5420 Samsung Exynos 5420
8C 8T @ 1.90 GHz
0 (0%)
AMD A8-7670K AMD A8-7670K
4C 4T @ 3.90 GHz
4682 (100%)

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.
Samsung Exynos 5420 Samsung Exynos 5420
8C 8T @ 1.90 GHz
0 (0%)
AMD A8-7670K AMD A8-7670K
4C 4T @ 3.90 GHz
66 (100%)

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.
Samsung Exynos 5420 Samsung Exynos 5420
8C 8T @ 1.90 GHz
0 (0%)
AMD A8-7670K AMD A8-7670K
4C 4T @ 3.90 GHz
250 (100%)

Devices using this processor
Samsung Exynos 5420 AMD A8-7670K
Unknown Unknown

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