Qualcomm Snapdragon 8cx vs AMD EPYC 7642
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CPU comparison with benchmarks
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| Qualcomm Snapdragon 8cx | AMD EPYC 7642 | |
CPU comparisonIn this CPU comparison, we compare the Qualcomm Snapdragon 8cx and the AMD EPYC 7642 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 7642 which has 48 CPU cores and was introduced in Q3/2019. |
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| Qualcomm Snapdragon (102) | Family | AMD EPYC (129) |
| Qualcomm Snapdragon 8cx (2) | CPU group | AMD EPYC 7002 (24) |
| 2 | Generation | 2 |
| Kryo 495 | Architecture | Rome (Zen 2) |
| Mobile | Segment | Desktop / Server |
| -- | Predecessor | -- |
| -- | Successor | AMD EPYC 7643 |
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CPU Cores and Base FrequencyThe 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 7642 clocks with 2.30 GHz (3.30 GHz), has 48 CPU cores and can calculate 96 threads in parallel. |
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| Qualcomm Snapdragon 8cx | Characteristic | AMD EPYC 7642 |
| 8 | Cores | 48 |
| 8 | Threads | 96 |
| hybrid (big.LITTLE) | Core architecture | normal |
| No | Hyperthreading | Yes |
| No | Overclocking ? | No |
| 2.84 GHz 4x Kryo 495 Gold |
A-Core | 2.30 GHz (3.30 GHz) |
| 1.80 GHz 4x Kryo 495 Silver |
B-Core | -- |
Artificial Intelligence and Machine LearningProcessors 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. |
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| Qualcomm Snapdragon 8cx | Characteristic | AMD EPYC 7642 |
| Qualcomm AI engine | AI hardware | -- |
| Hexagon 685 @ 3 TOPS | AI specifications | -- |
Internal GraphicsGraphics (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. |
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| 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 supportA 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. |
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| 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 & PCIeUp to 16 GB of memory in a maximum of 8 memory channels is supported by the Qualcomm Snapdragon 8cx, while the AMD EPYC 7642 supports a maximum of GB of memory with a maximum memory bandwidth of 51.2 GB/s enabled. |
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| Qualcomm Snapdragon 8cx | Characteristic | AMD EPYC 7642 |
| LPDDR4X-4266 | Memory | DDR4-3200 |
| 16 GB | Max. Memory | |
| 8 (Octa Channel) | Memory channels | 8 (Octa Channel) |
| 68.2 GB/s | Max. Bandwidth | 51.2 GB/s |
| No | ECC | Yes |
| -- | L2 Cache | -- |
| 2.00 MB | L3 Cache | 256.00 MB |
| -- | PCIe version | 4.0 |
| -- | PCIe lanes | 128 |
| -- | PCIe Bandwidth | 252.0 GB/s |
Thermal ManagementThe Qualcomm Snapdragon 8cx has a TDP of 7 W. The TDP of the AMD EPYC 7642 is 225 W. System integrators use the TDP of the processor as a guide when dimensioning the cooling solution. |
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| Qualcomm Snapdragon 8cx | Characteristic | AMD EPYC 7642 |
| 7 W | TDP (PL1 / PBP) | 225 W |
| -- | TDP (PL2) | -- |
| -- | TDP up | -- |
| -- | TDP down | -- |
| -- | Tjunction max. | -- |
Technical detailsThe Qualcomm Snapdragon 8cx has 2.00 MB cache and is manufactured in 7 nm. The cache of AMD EPYC 7642 is at 256.00 MB. The processor is manufactured in 7 nm. |
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| Qualcomm Snapdragon 8cx | Characteristic | AMD EPYC 7642 |
| 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 | Q3/2019 |
| -- | Release price | 8000 $ |
| show more data | show more data | |
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8C 8T @ 2.84 GHz buy now on Amazon and save!
48C 96T @ 2.30 GHz (3.30 GHz) buy now on Amazon and save!
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Rate these processors
Average performance in benchmarks
⌀ Single core performance in 1 CPU benchmarks
⌀ Multi core performance in 1 CPU benchmarks
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.
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Qualcomm Snapdragon 8cx
8C 8T @ 2.84 GHz |
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AMD EPYC 7642
48C 96T @ 3.30 GHz |
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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.
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Qualcomm Snapdragon 8cx
8C 8T @ 2.84 GHz |
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AMD EPYC 7642
48C 96T @ 2.80 GHz |
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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.
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Qualcomm Snapdragon 8cx
8C 8T @ 2.84 GHz |
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AMD EPYC 7642
48C 96T @ 3.30 GHz |
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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.
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Qualcomm Snapdragon 8cx
8C 8T @ 2.84 GHz |
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AMD EPYC 7642
48C 96T @ 2.80 GHz |
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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.
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Qualcomm Snapdragon 8cx
8C 8T @ 2.84 GHz |
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AMD EPYC 7642
48C 96T @ 3.30 GHz |
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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.
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Qualcomm Snapdragon 8cx
Qualcomm Adreno 680 @ 0.59 GHz |
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AMD EPYC 7642
@ 0.00 GHz |
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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.
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Qualcomm Snapdragon 8cx
8C 8T @ 2.84 GHz |
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AMD EPYC 7642
48C 96T @ 2.80 GHz |
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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).
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Qualcomm Snapdragon 8cx
8C 8T @ 2.84 GHz |
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AMD EPYC 7642
48C 96T @ 2.30 GHz |
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Devices using this processor |
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| Qualcomm Snapdragon 8cx | AMD EPYC 7642 |
| Lenovo Flex 5G Lenovo Yoga C 5G Samsung Galaxy Book S |
Unknown |
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