AMD Ryzen 5 8640HS vs AMD A4-3400

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CPU comparison with benchmarks


AMD Ryzen 5 8640HS CPU1 vs CPU2 AMD A4-3400
AMD Ryzen 5 8640HS AMD A4-3400

CPU comparison

In this CPU comparison, we compare the AMD Ryzen 5 8640HS and the AMD A4-3400 and use benchmarks to check which processor is faster.

We compare the AMD Ryzen 5 8640HS 6 core processor released in Q1/2024 with the AMD A4-3400 which has 2 CPU cores and was introduced in Q3/2011.
AMD Ryzen 5 (86) Family AMD A (112)
AMD Ryzen 8040 (20) CPU group AMD A4-3000 (3)
7 Generation 1
Hawk Point (Zen 4) Architecture Llano (K10)
Mobile Segment Desktop / Server
AMD Ryzen 5 7640HS Predecessor --
-- Successor --

CPU Cores and Base Frequency

The AMD Ryzen 5 8640HS is a 6 core processor with a clock frequency of 3.80 GHz (5.00 GHz). The processor can compute 12 threads at the same time. The AMD A4-3400 clocks with 2.70 GHz, has 2 CPU cores and can calculate 2 threads in parallel.

AMD Ryzen 5 8640HS Characteristic AMD A4-3400
6 Cores 2
12 Threads 2
normal Core architecture normal
Yes Hyperthreading No
No Overclocking ? Yes
3.80 GHz Frequency 2.70 GHz
5.00 GHz Turbo Frequency (1 Core) --
-- Turbo Frequency (All Cores) --

NPU AI performance

The performance values of the processor's AI unit. The isolated NPU performance is specified here, the total AI performance (NPU+CPU+iGPU) can be higher. Processors with support for artificial intelligence (AI) and machine learning (ML) can process many calculations, especially audio, image and video processing, much faster than classic processors.

AMD Ryzen 5 8640HS Characteristic AMD A4-3400
AMD Ryzen™ AI AI hardware --
AMD Ryzen™ AI (XDNA) @ 16 TOPS AI specifications --
-- NPU + CPU + iGPU --

Integrated graphics (iGPU)

Graphics (iGPU) integrated into the processor not only enable image output without having to rely on a dedicated graphics solution, but can also efficiently accelerate video playback.

AMD Radeon 760M GPU AMD Radeon HD 6410D
0.80 GHz GPU frequency 0.60 GHz
2.60 GHz GPU (Turbo) --
10 GPU Generation 3
4 nm Technology 32 nm
4 Max. displays 2
8 Compute units 2
512 Shader 160
Yes Hardware Raytracing No
AMD FSR Frame Generation No
32 GB Max. GPU Memory 1 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 760M GPU AMD Radeon HD 6410D
Decode / Encode Codec h265 / HEVC (8 bit) No
Decode / Encode Codec h265 / HEVC (10 bit) No
Decode / Encode Codec h264 Decode
Decode Codec VP9 No
Decode Codec VP8 No
Decode / Encode Codec AV1 No
Decode Codec AVC Decode
Decode Codec VC-1 Decode
Decode / Encode Codec JPEG Decode / Encode

Memory & PCIe

Up to 256 GB of memory in a maximum of 2 memory channels is supported by the AMD Ryzen 5 8640HS, while the AMD A4-3400 supports a maximum of GB of memory with a maximum memory bandwidth of 25.6 GB/s enabled.

AMD Ryzen 5 8640HS Characteristic AMD A4-3400
DDR5-4800, DDR5-5600, LPDDR5-6400, LPDDR5X-7500 Memory DDR3-1600
256 GB Max. Memory
2 (Dual Channel) Memory channels 2 (Dual Channel)
120.0 GB/s Max. Bandwidth 25.6 GB/s
Yes ECC No
6.00 MB L2 Cache 1.00 MB
16.00 MB L3 Cache --
4.0 PCIe version --
20 PCIe lanes --
39.4 GB/s PCIe Bandwidth --

Thermal Management

The AMD Ryzen 5 8640HS has a TDP of 28 W. The TDP of the AMD A4-3400 is 65 W. System integrators use the TDP of the processor as a guide when dimensioning the cooling solution.

AMD Ryzen 5 8640HS Characteristic AMD A4-3400
28 W TDP (PL1 / PBP) 65 W
-- TDP (PL2) --
54 W TDP up --
35 W TDP down --
100 °C Tjunction max. --

Technical details

The AMD Ryzen 5 8640HS has 22.00 MB cache and is manufactured in 4 nm. The cache of AMD A4-3400 is at 1.00 MB. The processor is manufactured in 32 nm.

AMD Ryzen 5 8640HS Characteristic AMD A4-3400
4 nm Technology 32 nm
Monolithic Chip design Unknown
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
SSE4a, SSE4.1, SSE4.2,FMA3, AVX2, AVX512 ISA extensions SSE3, SSE4a
FP8 Socket FM1
AMD-V, SVM Virtualization AMD-V
Yes AES-NI No
Windows 10, Windows 11, Linux Operating systems Windows 10, Linux
Q1/2024 Release date Q3/2011
-- Release price 28 $
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Rate these processors

Here you can rate the AMD Ryzen 5 8640HS to help other visitors make their purchasing decisions. The average rating is 4.0 stars (8 ratings). Rate now:
Here you can rate the AMD A4-3400 to help other visitors make their purchasing decisions. The average rating is 5.0 stars (1 ratings). Rate now:


Average performance in benchmarks

⌀ Single core performance in 1 CPU benchmarks
AMD Ryzen 5 8640HS (100%)
AMD A4-3400 (19%)
⌀ Multi core performance in 0 CPU benchmarks
AMD Ryzen 5 8640HS (0%)
AMD A4-3400 (0%)

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 Ryzen 5 8640HS AMD Ryzen 5 8640HS
6C 12T @ 5.00 GHz
1802 (100%)
AMD A4-3400 AMD A4-3400
2C 2T @ 2.70 GHz
349 (19%)

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 Ryzen 5 8640HS AMD Ryzen 5 8640HS
AMD Radeon 760M @ 2.60 GHz
2663 (100%)
AMD A4-3400 AMD A4-3400
AMD Radeon HD 6410D @ 0.60 GHz
192 (7%)

Cinebench 2024 (Single-Core)

The Cinebench 2024 benchmark is based on the Redshift rendering engine, which is also used in Maxon's 3D program Cinema 4D. The benchmark runs are each 10 minutes long to test whether the processor is limited by its heat generation.
AMD Ryzen 5 8640HS AMD Ryzen 5 8640HS
6C 12T @ 5.00 GHz
99 (100%)
AMD A4-3400 AMD A4-3400
2C 2T @ 2.70 GHz
0 (0%)

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 Ryzen 5 8640HS AMD Ryzen 5 8640HS
6C 12T @ 3.80 GHz
0 (0%)
AMD A4-3400 AMD A4-3400
2C 2T @ 2.70 GHz
643 (100%)

Geekbench 6 (Single-Core)

Geekbench 6 is a benchmark for modern computers, notebooks and smartphones. What is new is an optimized utilization of newer CPU architectures, e.g. based on the big.LITTLE concept and combining CPU cores of different sizes. The single-core benchmark only evaluates the performance of the fastest CPU core, the number of CPU cores in a processor is irrelevant here.
AMD Ryzen 5 8640HS AMD Ryzen 5 8640HS
6C 12T @ 5.00 GHz
2478 (100%)
AMD A4-3400 AMD A4-3400
2C 2T @ 2.70 GHz
0 (0%)

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 Ryzen 5 8640HS AMD Ryzen 5 8640HS
6C 12T @ 5.00 GHz
0 (0%)
AMD A4-3400 AMD A4-3400
2C 2T @ 2.70 GHz
125 (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 Ryzen 5 8640HS AMD Ryzen 5 8640HS
6C 12T @ 3.80 GHz
0 (0%)
AMD A4-3400 AMD A4-3400
2C 2T @ 2.70 GHz
245 (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 Ryzen 5 8640HS AMD Ryzen 5 8640HS
6C 12T @ 3.80 GHz
0 (0%)
AMD A4-3400 AMD A4-3400
2C 2T @ 2.70 GHz
1082 (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 Ryzen 5 8640HS AMD Ryzen 5 8640HS
6C 12T @ 3.80 GHz
0 (0%)
AMD A4-3400 AMD A4-3400
2C 2T @ 2.70 GHz
243 (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.
AMD Ryzen 5 8640HS AMD Ryzen 5 8640HS
6C 12T @ 5.00 GHz
0 (0%)
AMD A4-3400 AMD A4-3400
2C 2T @ 2.70 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.
AMD Ryzen 5 8640HS AMD Ryzen 5 8640HS
6C 12T @ 3.80 GHz
0 (0%)
AMD A4-3400 AMD A4-3400
2C 2T @ 2.70 GHz
125 (100%)

AI performance (NPU)

The performance values of the processor's AI unit. The isolated NPU performance is given here, the total AI performance (NPU+CPU+iGPU) can be higher.

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. The performance is given in the number (trillions) of arithmetic operations per second (TOPS).
AMD Ryzen 5 8640HS AMD Ryzen 5 8640HS
6C 12T @ 3.80 GHz
16 (100%)
AMD A4-3400 AMD A4-3400
2C 2T @ 2.70 GHz
0 (0%)

Devices using this processor

AMD Ryzen 5 8640HS AMD A4-3400
Unknown Unknown

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