Qualcomm Snapdragon 8cx vs AMD EPYC 7343

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CPU comparison with benchmarks


Qualcomm Snapdragon 8cx CPU1 vs CPU2 AMD EPYC 7343
Qualcomm Snapdragon 8cx AMD EPYC 7343

CPU comparison

In this CPU comparison, we compare the Qualcomm Snapdragon 8cx and the AMD EPYC 7343 and use benchmarks to check which processor is faster.

We compare the Qualcomm Snapdragon 8cx 8 core processor released in Q4/2018 with the AMD EPYC 7343 which has 16 CPU cores and was introduced in Q1/2021.
Qualcomm Snapdragon (102) Family AMD EPYC (129)
Qualcomm Snapdragon 8cx (2) CPU group AMD EPYC 7003 (29)
2 Generation 3
Kryo 495 Architecture Milan (Zen 3)
Mobile Segment Desktop / Server
-- Predecessor --
-- Successor --

CPU Cores and Base Frequency

The Qualcomm Snapdragon 8cx is a 8 core processor with a clock frequency of 2.84 GHz. The processor can compute 8 threads at the same time. The AMD EPYC 7343 clocks with 3.20 GHz (3.90 GHz), has 16 CPU cores and can calculate 32 threads in parallel.

Qualcomm Snapdragon 8cx Characteristic AMD EPYC 7343
8 Cores 16
8 Threads 32
hybrid (big.LITTLE) Core architecture normal
No Hyperthreading Yes
No Overclocking ? No
2.84 GHz
4x Kryo 495 Gold
A-Core 3.20 GHz (3.90 GHz)
16x Zen 3
1.80 GHz
4x Kryo 495 Silver
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.

Qualcomm Snapdragon 8cx Characteristic AMD EPYC 7343
Qualcomm AI engine AI hardware --
Hexagon 685 @ 3 TOPS AI specifications --

Internal Graphics

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 680 GPU no iGPU
0.25 GHz GPU frequency --
0.59 GHz GPU (Turbo) --
5 GPU Generation --
7 nm Technology
2 Max. displays
8 Compute units --
768 Shader --
No Hardware Raytracing No
No Frame Generation No
4 GB Max. GPU Memory --
12.0 DirectX Version --

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 680 GPU no iGPU
Decode / Encode Codec h265 / HEVC (8 bit) No
Decode / Encode Codec h265 / HEVC (10 bit) No
Decode / Encode Codec h264 No
Decode Codec VP9 No
Decode / Encode Codec VP8 No
No Codec AV1 No
Decode Codec AVC No
Decode Codec VC-1 No
Decode / Encode Codec JPEG No

Memory & PCIe

Up to 16 GB of memory in a maximum of 8 memory channels is supported by the Qualcomm Snapdragon 8cx, while the AMD EPYC 7343 supports a maximum of 4096 GB of memory with a maximum memory bandwidth of 204.8 GB/s enabled.

Qualcomm Snapdragon 8cx Characteristic AMD EPYC 7343
LPDDR4X-4266 Memory DDR4-3200
16 GB Max. Memory 4096 GB
8 (Octa Channel) Memory channels 8 (Octa Channel)
68.2 GB/s Max. Bandwidth 204.8 GB/s
No ECC Yes
-- L2 Cache --
2.00 MB L3 Cache 128.00 MB
-- PCIe version 4.0
-- PCIe lanes 128
-- PCIe Bandwidth 252.0 GB/s

Thermal Management

The Qualcomm Snapdragon 8cx has a TDP of 7 W. The TDP of the AMD EPYC 7343 is 190 W. System integrators use the TDP of the processor as a guide when dimensioning the cooling solution.

Qualcomm Snapdragon 8cx Characteristic AMD EPYC 7343
7 W TDP (PL1 / PBP) 190 W
-- TDP (PL2) --
-- TDP up 200 W
-- TDP down 165 W
-- Tjunction max. --

Technical details

The Qualcomm Snapdragon 8cx has 2.00 MB cache and is manufactured in 7 nm. The cache of AMD EPYC 7343 is at 128.00 MB. The processor is manufactured in 7 nm.

Qualcomm Snapdragon 8cx Characteristic AMD EPYC 7343
7 nm Technology 7 nm
Chiplet Chip design Chiplet
Armv8-A (64 bit) Instruction set (ISA) x86-64 (64 bit)
-- ISA extensions SSE4a, SSE4.1, SSE4.2, AVX2, FMA3
-- Socket SP3
None Virtualization AMD-V, SVM
No AES-NI Yes
Android, Windows 10 (ARM) Operating systems Windows 10, Linux
Q4/2018 Release date Q1/2021
-- Release price 1565 $
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Average performance in benchmarks

⌀ Single core performance in 1 CPU benchmarks
Qualcomm Snapdragon 8cx (51%)
AMD EPYC 7343 (100%)
⌀ Multi core performance in 1 CPU benchmarks
Qualcomm Snapdragon 8cx (13%)
AMD EPYC 7343 (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 8cx Qualcomm Snapdragon 8cx
8C 8T @ 2.84 GHz
724 (51%)
AMD EPYC 7343 AMD EPYC 7343
16C 32T @ 3.90 GHz
1414 (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 8cx Qualcomm Snapdragon 8cx
8C 8T @ 2.84 GHz
2808 (13%)
AMD EPYC 7343 AMD EPYC 7343
16C 32T @ 3.60 GHz
20897 (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 8cx Qualcomm Snapdragon 8cx
Qualcomm Adreno 680 @ 0.59 GHz
1843 (100%)
AMD EPYC 7343 AMD EPYC 7343
@ 0.00 GHz
0 (0%)

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 8cx Qualcomm Snapdragon 8cx
8C 8T @ 2.84 GHz
0 (0%)
AMD EPYC 7343 AMD EPYC 7343
16C 32T @ 3.60 GHz
45914 (100%)

Performance for Artificial Intelligence (AI) and Machine Learning (ML)

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).
Qualcomm Snapdragon 8cx Qualcomm Snapdragon 8cx
8C 8T @ 2.84 GHz
3 (100%)
AMD EPYC 7343 AMD EPYC 7343
16C 32T @ 3.20 GHz
0 (0%)

Devices using this processor

Qualcomm Snapdragon 8cx AMD EPYC 7343
Lenovo Flex 5G
Lenovo Yoga C 5G
Samsung Galaxy Book S
Unknown

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