Qualcomm Snapdragon 805 vs AMD Ryzen 5 8640U

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CPU comparison with benchmarks


Qualcomm Snapdragon 805 CPU1 vs CPU2 AMD Ryzen 5 8640U
Qualcomm Snapdragon 805 AMD Ryzen 5 8640U

CPU comparison

In this CPU comparison, we compare the Qualcomm Snapdragon 805 and the AMD Ryzen 5 8640U and use benchmarks to check which processor is faster.

We compare the Qualcomm Snapdragon 805 4 core processor released in Q4/2013 with the AMD Ryzen 5 8640U which has 6 CPU cores and was introduced in Q1/2024.
Qualcomm Snapdragon (104) Family AMD Ryzen 5 (86)
Qualcomm Snapdragon 805 (1) CPU group AMD Ryzen 8040 (20)
2 Generation 7
Krait 450 Architecture Hawk Point (Zen 4)
Mobile Segment Mobile
-- Predecessor AMD Ryzen 5 7640U
-- Successor --

CPU Cores and Base Frequency

The Qualcomm Snapdragon 805 is a 4 core processor with a clock frequency of 2.70 GHz. The processor can compute 4 threads at the same time. The AMD Ryzen 5 8640U clocks with 3.50 GHz (4.90 GHz), has 6 CPU cores and can calculate 12 threads in parallel.

Qualcomm Snapdragon 805 Characteristic AMD Ryzen 5 8640U
4 Cores 6
4 Threads 12
normal Core architecture normal
No Hyperthreading Yes
No Overclocking ? No
2.70 GHz Frequency 3.50 GHz
-- Turbo Frequency (1 Core) 4.90 GHz
-- 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.

Qualcomm Snapdragon 805 Characteristic AMD Ryzen 5 8640U
Qualcomm AI engine AI hardware --
Hexagon DSP V50 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.

Qualcomm Adreno 420 GPU AMD Radeon 760M
0.50 GHz GPU frequency 0.80 GHz
0.50 GHz GPU (Turbo) 2.60 GHz
4 GPU Generation 10
28 nm Technology 4 nm
0 Max. displays 4
-- Compute units 8
128 Shader 512
No Hardware Raytracing Yes
No Frame Generation AMD FSR
-- Max. GPU Memory 32 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.

Qualcomm Adreno 420 GPU AMD Radeon 760M
Decode Codec h265 / HEVC (8 bit) Decode / Encode
No Codec h265 / HEVC (10 bit) Decode / Encode
Decode / Encode Codec h264 Decode / Encode
No Codec VP9 Decode
No Codec VP8 Decode
No Codec AV1 Decode / Encode
No Codec AVC Decode
Decode Codec VC-1 Decode
Decode / Encode Codec JPEG Decode / Encode

Memory & PCIe

Up to 8 GB of memory in a maximum of 2 memory channels is supported by the Qualcomm Snapdragon 805, while the AMD Ryzen 5 8640U supports a maximum of 256 GB of memory with a maximum memory bandwidth of 120.0 GB/s enabled.

Qualcomm Snapdragon 805 Characteristic AMD Ryzen 5 8640U
LPDDR3-1600 Memory DDR5-4800, DDR5-5600, LPDDR5-6400, LPDDR5X-7500
8 GB Max. Memory 256 GB
2 (Dual Channel) Memory channels 2 (Dual Channel)
25.6 GB/s Max. Bandwidth 120.0 GB/s
No ECC Yes
-- L2 Cache 6.00 MB
-- L3 Cache 16.00 MB
-- PCIe version 4.0
-- PCIe lanes 20
-- PCIe Bandwidth 39.4 GB/s

Thermal Management

The Qualcomm Snapdragon 805 has a TDP of --. The TDP of the AMD Ryzen 5 8640U is 28 W. System integrators use the TDP of the processor as a guide when dimensioning the cooling solution.

Qualcomm Snapdragon 805 Characteristic AMD Ryzen 5 8640U
-- TDP (PL1 / PBP) 28 W
-- TDP (PL2) --
-- TDP up 30 W
-- TDP down 15 W
-- Tjunction max. 100 °C

Technical details

The Qualcomm Snapdragon 805 has 0.00 MB cache and is manufactured in 28 nm. The cache of AMD Ryzen 5 8640U is at 22.00 MB. The processor is manufactured in 4 nm.

Qualcomm Snapdragon 805 Characteristic AMD Ryzen 5 8640U
28 nm Technology 4 nm
Chiplet Chip design Monolithic
Armv7-A (32 bit) Instruction set (ISA) x86-64 (64 bit)
-- ISA extensions SSE4a, SSE4.1, SSE4.2,FMA3, AVX2, AVX512
-- Socket FP8
None Virtualization AMD-V, SVM
No AES-NI Yes
Android Operating systems Windows 10, Windows 11, Linux
Q4/2013 Release date Q1/2024
-- Release price --
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Rate these processors

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Average performance in benchmarks

⌀ Single core performance in 1 CPU benchmarks
Qualcomm Snapdragon 805 (9%)
AMD Ryzen 5 8640U (100%)
⌀ Multi core performance in 1 CPU benchmarks
Qualcomm Snapdragon 805 (6%)
AMD Ryzen 5 8640U (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.
Qualcomm Snapdragon 805 Qualcomm Snapdragon 805
4C 4T @ 2.70 GHz
162 (9%)
AMD Ryzen 5 8640U AMD Ryzen 5 8640U
6C 12T @ 4.90 GHz
1869 (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.
Qualcomm Snapdragon 805 Qualcomm Snapdragon 805
4C 4T @ 2.70 GHz
530 (6%)
AMD Ryzen 5 8640U AMD Ryzen 5 8640U
6C 12T @ 3.50 GHz
8853 (100%)

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.
Qualcomm Snapdragon 805 Qualcomm Snapdragon 805
Qualcomm Adreno 420 @ 0.50 GHz
128 (5%)
AMD Ryzen 5 8640U AMD Ryzen 5 8640U
AMD Radeon 760M @ 2.60 GHz
2663 (100%)

Cinebench R23 (Single-Core)

Cinebench R23 is the successor of Cinebench R20 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.
Qualcomm Snapdragon 805 Qualcomm Snapdragon 805
4C 4T @ 2.70 GHz
0 (0%)
AMD Ryzen 5 8640U AMD Ryzen 5 8640U
6C 12T @ 4.90 GHz
1552 (100%)

Cinebench R23 (Multi-Core)

Cinebench R23 is the successor of Cinebench R20 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.
Qualcomm Snapdragon 805 Qualcomm Snapdragon 805
4C 4T @ 2.70 GHz
0 (0%)
AMD Ryzen 5 8640U AMD Ryzen 5 8640U
6C 12T @ 3.50 GHz
10675 (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.
Qualcomm Snapdragon 805 Qualcomm Snapdragon 805
4C 4T @ 2.70 GHz
0 (0%)
AMD Ryzen 5 8640U AMD Ryzen 5 8640U
6C 12T @ 4.90 GHz
2340 (100%)

Geekbench 6 (Multi-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 multi-core benchmark evaluates the performance of all of the processor's CPU cores. Virtual thread improvements such as AMD SMT or Intel's Hyper-Threading have a positive impact on the benchmark result.
Qualcomm Snapdragon 805 Qualcomm Snapdragon 805
4C 4T @ 2.70 GHz
0 (0%)
AMD Ryzen 5 8640U AMD Ryzen 5 8640U
6C 12T @ 3.50 GHz
9197 (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.
Qualcomm Snapdragon 805 Qualcomm Snapdragon 805
4C 4T @ 2.70 GHz
582 (100%)
AMD Ryzen 5 8640U AMD Ryzen 5 8640U
6C 12T @ 3.50 GHz
0 (0%)

CPU performance per watt (efficiency)

Efficiency of the processor under full load in the Cinebench R23 (multi-core) benchmark. The benchmark result is divided by the average energy required (CPU package power in watts). The higher the value, the more efficient the CPU is under full load.
Qualcomm Snapdragon 805 Qualcomm Snapdragon 805
2.70 GHz
0 (0%)
AMD Ryzen 5 8640U AMD Ryzen 5 8640U
10,675 CB R23 MC @ 24 W
445 (100%)

Devices using this processor

Qualcomm Snapdragon 805 AMD Ryzen 5 8640U
Unknown Unknown

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