AMD A8-7670K vs AMD A4-4000

Last updated:

CPU comparison with benchmarks


AMD A8-7670K CPU1 vs CPU2 AMD A4-4000
AMD A8-7670K AMD A4-4000

CPU comparison

AMD A8-7670K or AMD A4-4000 - 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 A8-7670K has 4 cores with 4 threads and clocks with a maximum frequency of 3.90 GHz. Up to GB of memory is supported in 2 memory channels. The AMD A8-7670K was released in Q2/2015.

The AMD A4-4000 has 2 cores with 2 threads and clocks with a maximum frequency of 3.20 GHz. The CPU supports up to GB of memory in 2 memory channels. The AMD A4-4000 was released in Q2/2013.
AMD A (112) Family AMD A (112)
AMD A8-7000 (6) CPU group AMD A4-4000 (2)
4 Generation 2
Kaveri (Steamroller) Architecture Richland (Piledriver)
Mobile Segment Desktop / Server
-- Predecessor --
-- Successor --

CPU Cores and Base Frequency

The AMD A8-7670K has 4 CPU cores and can calculate 4 threads in parallel. The clock frequency of the AMD A8-7670K is 3.60 GHz (3.90 GHz) while the AMD A4-4000 has 2 CPU cores and 2 threads can calculate simultaneously. The clock frequency of the AMD A4-4000 is at 3.00 GHz (3.20 GHz).
AMD A8-7670K Characteristic AMD A4-4000
4 Cores 2
4 Threads 2
normal Core architecture normal
No Hyperthreading No
Yes Overclocking ? No
3.60 GHz Frequency 3.00 GHz
3.90 GHz Turbo Frequency (1 Core) 3.20 GHz
3.90 GHz Turbo Frequency (All Cores) 3.20 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 A8-7670K Characteristic AMD A4-4000
-- AI hardware --
-- AI specifications --

Internal Graphics

The AMD A8-7670K or AMD A4-4000 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 R7 - 384 (Kaveri) GPU AMD Radeon HD 7480D
0.76 GHz GPU frequency 0.72 GHz
-- GPU (Turbo) --
6 GPU Generation 4
28 nm Technology 32 nm
2 Max. displays 2
6 Compute units 2
384 Shader 128
No Hardware Raytracing No
No Frame Generation No
2 GB Max. GPU Memory 2 GB
12 DirectX Version 11

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 R7 - 384 (Kaveri) GPU AMD Radeon HD 7480D
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 A8-7670K can use up to GB of memory in 2 memory channels. The maximum memory bandwidth is 34.2 GB/s. The AMD A4-4000 supports up to GB of memory in 2 memory channels and achieves a memory bandwidth of up to 21.3 GB/s.
AMD A8-7670K Characteristic AMD A4-4000
DDR3-2133 Memory DDR3-1333
Max. Memory
2 (Dual Channel) Memory channels 2 (Dual Channel)
34.2 GB/s Max. Bandwidth 21.3 GB/s
Yes ECC No
-- L2 Cache --
4.00 MB L3 Cache 1.00 MB
3.0 PCIe version --
16 PCIe lanes --
15.8 GB/s PCIe Bandwidth --

Thermal Management

The thermal design power (TDP for short) of the AMD A8-7670K is 95 W, while the AMD A4-4000 has a TDP of 65 W. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently.
AMD A8-7670K Characteristic AMD A4-4000
95 W TDP (PL1 / PBP) 65 W
-- TDP (PL2) --
-- TDP up --
-- TDP down --
-- Tjunction max. --

Technical details

The AMD A8-7670K is manufactured in 28 nm and has 4.00 MB cache. The AMD A4-4000 is manufactured in 32 nm and has a 1.00 MB cache.
AMD A8-7670K Characteristic AMD A4-4000
28 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
Operating systems Windows 10, Linux
Q2/2015 Release date Q2/2013
120 $ Release price 32 $
show more data show more data


Rate these processors

Here you can rate the AMD A8-7670K to help other visitors make their purchasing decisions. The average rating is 0 stars (0 ratings). Rate now:
Here you can rate the AMD A4-4000 to help other visitors make their purchasing decisions. The average rating is 3.5 stars (2 ratings). Rate now:


Average performance in benchmarks

⌀ Single core performance in 1 CPU benchmarks
AMD A8-7670K (96%)
AMD A4-4000 (100%)
⌀ Multi core performance in 2 CPU benchmarks
AMD A8-7670K (100%)
AMD A4-4000 (43%)

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 A8-7670K AMD A8-7670K
AMD Radeon R7 - 384 (Kaveri) @ 0.76 GHz
581 (100%)
AMD A4-4000 AMD A4-4000
AMD Radeon HD 7480D @ 0.72 GHz
184 (32%)

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 A8-7670K AMD A8-7670K
4C 4T @ 3.90 GHz
4682 (100%)
AMD A4-4000 AMD A4-4000
2C 2T @ 3.20 GHz
1831 (39%)

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 A8-7670K AMD A8-7670K
4C 4T @ 3.90 GHz
66 (96%)
AMD A4-4000 AMD A4-4000
2C 2T @ 3.20 GHz
69 (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.
AMD A8-7670K AMD A8-7670K
4C 4T @ 3.90 GHz
250 (100%)
AMD A4-4000 AMD A4-4000
2C 2T @ 3.20 GHz
116 (46%)

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 A8-7670K AMD A8-7670K
4C 4T @ 3.90 GHz
0 (0%)
AMD A4-4000 AMD A4-4000
2C 2T @ 3.20 GHz
348 (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 A8-7670K AMD A8-7670K
4C 4T @ 3.90 GHz
0 (0%)
AMD A4-4000 AMD A4-4000
2C 2T @ 3.20 GHz
499 (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 A8-7670K AMD A8-7670K
4C 4T @ 3.60 GHz
0 (0%)
AMD A4-4000 AMD A4-4000
2C 2T @ 3.00 GHz
293 (100%)

Devices using this processor
AMD A8-7670K AMD A4-4000
Unknown Unknown

Popular comparisons containing this CPUs

1. AMD A4-4000Intel Core i3-3220 AMD A4-4000 vs Intel Core i3-3220
2. AMD A4-4000AMD A4-6300 AMD A4-4000 vs AMD A4-6300
3. AMD A8-7670KAMD A8-7600 AMD A8-7670K vs AMD A8-7600
4. AMD A8-7650KAMD A8-7670K AMD A8-7650K vs AMD A8-7670K
5. AMD Athlon II X2 340AMD A4-4000 AMD Athlon II X2 340 vs AMD A4-4000
6. AMD A10-7850KAMD A8-7670K AMD A10-7850K vs AMD A8-7670K
7. AMD A8-7670KAMD A10-7700K AMD A8-7670K vs AMD A10-7700K
8. AMD A6-6400KAMD A4-4000 AMD A6-6400K vs AMD A4-4000
9. AMD A4-4000AMD A8-5600K AMD A4-4000 vs AMD A8-5600K
10. Intel Pentium G3220AMD A4-4000 Intel Pentium G3220 vs AMD A4-4000


back to index