AMD Ryzen 7 8840U vs Qualcomm Snapdragon 8cx Gen 3
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CPU comparison with benchmarks
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| AMD Ryzen 7 8840U | Qualcomm Snapdragon 8cx Gen 3 | |
CPU comparisonAMD Ryzen 7 8840U or Qualcomm Snapdragon 8cx Gen 3 - 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 Ryzen 7 8840U has 8 cores with 16 threads and clocks with a maximum frequency of 5.10 GHz. Up to 256 GB of memory is supported in 2 memory channels. The AMD Ryzen 7 8840U was released in Q1/2024. The Qualcomm Snapdragon 8cx Gen 3 has 8 cores with 8 threads and clocks with a maximum frequency of 3.00 GHz. The CPU supports up to 32 GB of memory in 8 memory channels. The Qualcomm Snapdragon 8cx Gen 3 was released in Q1/2022. |
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| AMD Ryzen 7 (70) | Family | Qualcomm Snapdragon (103) |
| AMD Ryzen 8040 (20) | CPU group | Qualcomm Snapdragon 8cx Gen 3 (1) |
| 7 | Generation | 3 |
| Hawk Point (Zen 4) | Architecture | Cortex-X1 / Cortex-A78 |
| Mobile | Segment | Mobile |
| AMD Ryzen 7 7840U | Predecessor | Qualcomm Snapdragon 8cx Gen. 2 |
| -- | Successor | -- |
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CPU Cores and Base FrequencyThe AMD Ryzen 7 8840U is a 8 core processor with a clock frequency of 3.30 GHz (5.10 GHz). The Qualcomm Snapdragon 8cx Gen 3 has 8 CPU cores with a clock frequency of 3.00 GHz. |
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| AMD Ryzen 7 8840U | Characteristic | Qualcomm Snapdragon 8cx Gen 3 |
| 8 | Cores | 8 |
| 16 | Threads | 8 |
| normal | Core architecture | hybrid (big.LITTLE) |
| Yes | Hyperthreading | No |
| No | Overclocking ? | No |
| 3.30 GHz (5.10 GHz) 8x Zen 4 |
A-Core | 3.00 GHz 4x Kryo 680 Prime |
| -- | B-Core | 2.42 GHz 4x Kryo 680 Gold |
NPU AI performanceThe 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. |
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| AMD Ryzen 7 8840U | Characteristic | Qualcomm Snapdragon 8cx Gen 3 |
| AMD Ryzen™ AI | AI hardware | Qualcomm AI engine |
| AMD Ryzen™ AI | AI specifications | Hexagon |
| -- | NPU + CPU + iGPU | -- |
Integrated graphics (iGPU)The integrated graphics unit of a processor is not only responsible for the pure image output on the system, but can also significantly increase the efficiency of the system with the support of modern video codecs. |
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| AMD Radeon 780M | GPU | Qualcomm Adreno 690 |
| 0.80 GHz | GPU frequency | -- |
| 2.70 GHz | GPU (Turbo) | -- |
| 3 | GPU Generation | 6 |
| 4 nm | Technology | 7 nm |
| 4 | Max. displays | 0 |
| 12 | Compute units | -- |
| 768 | Shader | -- |
| Yes | Hardware Raytracing | No |
| AMD FSR | Frame Generation | No |
| 32 GB | Max. GPU Memory | -- |
| 12 | DirectX Version | 12.0 |
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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| AMD Radeon 780M | GPU | Qualcomm Adreno 690 |
| Decode / Encode | Codec h265 / HEVC (8 bit) | Decode / Encode |
| Decode / Encode | Codec h265 / HEVC (10 bit) | Decode / Encode |
| Decode / Encode | Codec h264 | Decode / Encode |
| Decode | Codec VP9 | Decode |
| Decode | Codec VP8 | Decode / Encode |
| Decode / Encode | Codec AV1 | No |
| Decode | Codec AVC | Decode |
| Decode | Codec VC-1 | Decode |
| Decode / Encode | Codec JPEG | Decode / Encode |
Memory & PCIeThe AMD Ryzen 7 8840U supports a maximum of 256 GB of memory in 2 memory channels. The Qualcomm Snapdragon 8cx Gen 3 can connect up to 32 GB of memory in 8 memory channels. |
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| AMD Ryzen 7 8840U | Characteristic | Qualcomm Snapdragon 8cx Gen 3 |
| DDR5-4800, DDR5-5600, LPDDR5-6400, LPDDR5X-7500 | Memory | LPDDR4X-4266 |
| 256 GB | Max. Memory | 32 GB |
| 2 (Dual Channel) | Memory channels | 8 (Octa Channel) |
| 120.0 GB/s | Max. Bandwidth | 68.2 GB/s |
| Yes | ECC | No |
| 8.00 MB | L2 Cache | -- |
| 16.00 MB | L3 Cache | -- |
| 4.0 | PCIe version | -- |
| 20 | PCIe lanes | -- |
| 39.4 GB/s | PCIe Bandwidth | -- |
Thermal ManagementThe TDP (Thermal Design Power) of a processor specifies the required cooling solution. The AMD Ryzen 7 8840U has a TDP of 28 W, that of the Qualcomm Snapdragon 8cx Gen 3 is 7 W. |
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| AMD Ryzen 7 8840U | Characteristic | Qualcomm Snapdragon 8cx Gen 3 |
| 28 W | TDP (PL1 / PBP) | 7 W |
| -- | TDP (PL2) | -- |
| 30 W | TDP up | -- |
| 15 W | TDP down | -- |
| 100 °C | Tjunction max. | -- |
Technical detailsThe AMD Ryzen 7 8840U has a 24.00 MB cache, while the Qualcomm Snapdragon 8cx Gen 3 cache has a total of 0.00 MB. |
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| AMD Ryzen 7 8840U | Characteristic | Qualcomm Snapdragon 8cx Gen 3 |
| 4 nm | Technology | 5 nm |
| Monolithic | Chip design | Chiplet |
| x86-64 (64 bit) | Instruction set (ISA) | Armv8-A (64 bit) |
| SSE4a, SSE4.1, SSE4.2,FMA3, AVX2, AVX512 | ISA extensions | -- |
| FP8 | Socket | -- |
| AMD-V, SVM | Virtualization | None |
| Yes | AES-NI | No |
| Windows 10, Windows 11, Linux | Operating systems | Android, Windows 10 (ARM) |
| Q1/2024 | Release date | Q1/2022 |
| -- | Release price | -- |
| show more data | show more data | |
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Rate these processors
Average performance in benchmarks
⌀ Single core performance in 2 CPU benchmarks
⌀ Multi core performance in 2 CPU benchmarks
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.
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AMD Ryzen 7 8840U
8C 16T @ 5.10 GHz |
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Qualcomm Snapdragon 8cx Gen 3
8C 8T @ 3.00 GHz |
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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.
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AMD Ryzen 7 8840U
8C 16T @ 3.30 GHz |
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Qualcomm Snapdragon 8cx Gen 3
8C 8T @ 3.00 GHz |
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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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AMD Ryzen 7 8840U
8C 16T @ 5.10 GHz |
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Qualcomm Snapdragon 8cx Gen 3
8C 8T @ 3.00 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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AMD Ryzen 7 8840U
8C 16T @ 3.30 GHz |
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Qualcomm Snapdragon 8cx Gen 3
8C 8T @ 3.00 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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AMD Ryzen 7 8840U
8C 16T @ 5.10 GHz |
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Qualcomm Snapdragon 8cx Gen 3
8C 8T @ 3.00 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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AMD Ryzen 7 8840U
8C 16T @ 3.30 GHz |
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Qualcomm Snapdragon 8cx Gen 3
8C 8T @ 3.00 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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AMD Ryzen 7 8840U
AMD Radeon 780M @ 2.70 GHz |
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Qualcomm Snapdragon 8cx Gen 3
Qualcomm Adreno 690 @ 0.00 GHz |
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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.
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AMD Ryzen 7 8840U
13,450 CB R23 MC @ 30 W |
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Qualcomm Snapdragon 8cx Gen 3
3.00 GHz |
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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).
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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AMD Ryzen 7 8840U
8C 16T @ 3.30 GHz |
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Qualcomm Snapdragon 8cx Gen 3
8C 8T @ 3.00 GHz |
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Devices using this processor |
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| AMD Ryzen 7 8840U | Qualcomm Snapdragon 8cx Gen 3 |
| Unknown | Unknown |
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