AMD Ryzen 9 3950X vs Qualcomm Snapdragon 821
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CPU comparison with benchmarks
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| AMD Ryzen 9 3950X | Qualcomm Snapdragon 821 | |
CPU comparisonAMD Ryzen 9 3950X or Qualcomm Snapdragon 821 - 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 9 3950X has 16 cores with 32 threads and clocks with a maximum frequency of 4.70 GHz. Up to 128 GB of memory is supported in 2 memory channels. The AMD Ryzen 9 3950X was released in Q3/2019. The Qualcomm Snapdragon 821 has 4 cores with 4 threads and clocks with a maximum frequency of 2.40 GHz. The CPU supports up to 8 GB of memory in 2 memory channels. The Qualcomm Snapdragon 821 was released in Q3/2016. |
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| AMD Ryzen 9 (35) | Family | Qualcomm Snapdragon (102) |
| AMD Ryzen 3000 (15) | CPU group | Qualcomm Snapdragon 820 (3) |
| 3 | Generation | 3 |
| Matisse (Zen 2) | Architecture | Kryo |
| Desktop / Server | Segment | Mobile |
| -- | Predecessor | -- |
| AMD Ryzen 9 5950X | Successor | -- |
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CPU Cores and Base FrequencyThe AMD Ryzen 9 3950X is a 16 core processor with a clock frequency of 3.50 GHz (4.70 GHz). The Qualcomm Snapdragon 821 has 4 CPU cores with a clock frequency of 2.40 GHz. |
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| AMD Ryzen 9 3950X | Characteristic | Qualcomm Snapdragon 821 |
| 16 | Cores | 4 |
| 32 | Threads | 4 |
| normal | Core architecture | hybrid (big.LITTLE) |
| Yes | Hyperthreading | No |
| Yes | Overclocking ? | No |
| 3.50 GHz (4.70 GHz) | A-Core | 2.40 GHz 2x Kryo |
| -- | B-Core | 1.60 GHz 2x Kryo |
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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| AMD Ryzen 9 3950X | Characteristic | Qualcomm Snapdragon 821 |
| -- | AI hardware | Qualcomm AI engine |
| -- | AI specifications | Hexagon 680 |
Internal GraphicsThe 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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| no iGPU | GPU | Qualcomm Adreno 530 |
| GPU frequency | 0.62 GHz | |
| -- | GPU (Turbo) | 0.62 GHz |
| -- | GPU Generation | 5 |
| Technology | 14 nm | |
| Max. displays | 0 | |
| -- | Compute units | -- |
| -- | Shader | 256 |
| No | Hardware Raytracing | No |
| No | Frame Generation | No |
| -- | Max. GPU Memory | -- |
| -- | DirectX Version | 11,1 |
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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| no iGPU | GPU | Qualcomm Adreno 530 |
| No | Codec h265 / HEVC (8 bit) | Decode |
| No | Codec h265 / HEVC (10 bit) | No |
| No | Codec h264 | Decode |
| No | Codec VP9 | Decode |
| No | Codec VP8 | Decode |
| No | Codec AV1 | No |
| No | Codec AVC | No |
| No | Codec VC-1 | Decode |
| No | Codec JPEG | Decode |
Memory & PCIeThe AMD Ryzen 9 3950X supports a maximum of 128 GB of memory in 2 memory channels. The Qualcomm Snapdragon 821 can connect up to 8 GB of memory in 2 memory channels. |
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| AMD Ryzen 9 3950X | Characteristic | Qualcomm Snapdragon 821 |
| DDR4-3200 | Memory | LPDDR4-3733 |
| 128 GB | Max. Memory | 8 GB |
| 2 (Dual Channel) | Memory channels | 2 (Dual Channel) |
| 51.2 GB/s | Max. Bandwidth | 14.9 GB/s |
| Yes | ECC | No |
| -- | L2 Cache | -- |
| 64.00 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 9 3950X has a TDP of 105 W, that of the Qualcomm Snapdragon 821 is --. |
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| AMD Ryzen 9 3950X | Characteristic | Qualcomm Snapdragon 821 |
| 105 W | TDP (PL1 / PBP) | -- |
| 142 W | TDP (PL2) | -- |
| -- | TDP up | -- |
| -- | TDP down | -- |
| 95 °C | Tjunction max. | -- |
Technical detailsThe AMD Ryzen 9 3950X has a 64.00 MB cache, while the Qualcomm Snapdragon 821 cache has a total of 0.00 MB. |
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| AMD Ryzen 9 3950X | Characteristic | Qualcomm Snapdragon 821 |
| 7 nm | Technology | 14 nm |
| Chiplet | Chip design | Chiplet |
| x86-64 (64 bit) | Instruction set (ISA) | Armv8-A (64 bit) |
| SSE4a, SSE4.1, SSE4.2, AVX2, FMA3 | ISA extensions | -- |
| AM4 (PGA 1331) | Socket | -- |
| AMD-V, SVM | Virtualization | None |
| Yes | AES-NI | No |
| Windows 10, Windows 11, Linux | Operating systems | Android |
| Q3/2019 | Release date | Q3/2016 |
| 650 $ | Release price | -- |
| show more data | show more data | |
16C 32T @ 3.50 GHz (4.70 GHz) buy now on Amazon and save!
4C 4T @ 2.40 GHz buy now on Amazon and save!
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Rate these processors
Average performance in benchmarks
⌀ Single core performance in 2 CPU benchmarks
⌀ Multi core performance in 3 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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AMD Ryzen 9 3950X
16C 32T @ 4.70 GHz |
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Qualcomm Snapdragon 821
4C 4T @ 2.40 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 9 3950X
16C 32T @ 4.00 GHz |
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Qualcomm Snapdragon 821
4C 4T @ 2.40 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 9 3950X
16C 32T @ 4.70 GHz |
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Qualcomm Snapdragon 821
4C 4T @ 2.40 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 9 3950X
16C 32T @ 4.00 GHz |
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Qualcomm Snapdragon 821
4C 4T @ 2.40 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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AMD Ryzen 9 3950X
16C 32T @ 4.00 GHz |
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Qualcomm Snapdragon 821
4C 4T @ 2.40 GHz |
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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.
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AMD Ryzen 9 3950X
16C 32T @ 4.70 GHz |
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Qualcomm Snapdragon 821
4C 4T @ 2.40 GHz |
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Cinebench 2024 (Multi-Core)
The Multi-Core test of the Cinebench 2024 benchmark uses all cpu cores to render using the Redshift rendering engine, which is also used in Maxons Cinema 4D. The benchmark run is 10 minutes long to test whether the processor is limited by its heat generation.
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AMD Ryzen 9 3950X
16C 32T @ 4.70 GHz |
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Qualcomm Snapdragon 821
4C 4T @ 2.40 GHz |
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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 9 3950X
16C 32T @ 4.70 GHz |
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Qualcomm Snapdragon 821
4C 4T @ 2.40 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 9 3950X
16C 32T @ 4.00 GHz |
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Qualcomm Snapdragon 821
4C 4T @ 2.40 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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AMD Ryzen 9 3950X
16C 32T @ 4.70 GHz |
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Qualcomm Snapdragon 821
4C 4T @ 2.40 GHz |
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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.
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AMD Ryzen 9 3950X
16C 32T @ 4.00 GHz |
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Qualcomm Snapdragon 821
4C 4T @ 2.40 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 9 3950X
@ 0.00 GHz |
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Qualcomm Snapdragon 821
Qualcomm Adreno 530 @ 0.62 GHz |
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Blender 3.1 Benchmark
In the Blender Benchmark 3.1, the scenes "monster", "junkshop" and "classroom" are rendered and the time required by the system is measured. In our benchmark we test the CPU and not the graphics card. Blender 3.1 was presented as a standalone version in March 2022.
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AMD Ryzen 9 3950X
16C 32T @ 4.00 GHz |
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Qualcomm Snapdragon 821
4C 4T @ 2.40 GHz |
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Blender 2.81 (bmw27)
Blender is a free 3D graphics software for rendering (creating) 3D bodies, which can also be textured and animated in the software. The Blender benchmark creates predefined scenes and measures the time (s) required for the entire scene. The shorter the time required, the better. We selected bmw27 as the benchmark scene.
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AMD Ryzen 9 3950X
16C 32T @ 4.00 GHz |
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Qualcomm Snapdragon 821
4C 4T @ 2.40 GHz |
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CPU-Z Benchmark 17 (Single-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.
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AMD Ryzen 9 3950X
16C 32T @ 4.00 GHz |
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Qualcomm Snapdragon 821
4C 4T @ 2.40 GHz |
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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.
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AMD Ryzen 9 3950X
16C 32T @ 3.50 GHz |
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Qualcomm Snapdragon 821
4C 4T @ 2.40 GHz |
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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.
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AMD Ryzen 9 3950X
16C 32T @ 4.70 GHz |
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Qualcomm Snapdragon 821
4C 4T @ 2.40 GHz |
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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.
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AMD Ryzen 9 3950X
16C 32T @ 4.00 GHz |
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Qualcomm Snapdragon 821
4C 4T @ 2.40 GHz |
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Devices using this processor |
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| AMD Ryzen 9 3950X | Qualcomm Snapdragon 821 |
| Memory PC High End Gaming PC AMD Ryzen 9 3950X Kiebel Gamer-PC Loki [184903] |
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