Qualcomm Snapdragon 821 | AMD Ryzen 5 2500U | |
CPU comparisonQualcomm Snapdragon 821 or AMD Ryzen 5 2500U - 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 Qualcomm Snapdragon 821 has 4 cores with 4 threads and clocks with a maximum frequency of 2.40 GHz. Up to 8 GB of memory is supported in 2 memory channels. The Qualcomm Snapdragon 821 was released in Q3/2016. The AMD Ryzen 5 2500U has 4 cores with 8 threads and clocks with a maximum frequency of 3.60 GHz. The CPU supports up to 32 GB of memory in 2 memory channels. The AMD Ryzen 5 2500U was released in Q4/2017. |
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Qualcomm Snapdragon (102) | Family | AMD Ryzen 5 (85) |
Qualcomm Snapdragon 820 (3) | CPU group | AMD Ryzen 2000U (7) |
3 | Generation | 1 |
Kryo | Architecture | Raven Ridge (Zen) |
Mobile | Segment | Mobile |
-- | Predecessor | -- |
-- | Successor | -- |
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CPU Cores and Base FrequencyThe Qualcomm Snapdragon 821 is a 4 core processor with a clock frequency of 2.40 GHz. The AMD Ryzen 5 2500U has 4 CPU cores with a clock frequency of 2.00 GHz (3.60 GHz). |
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Qualcomm Snapdragon 821 | Characteristic | AMD Ryzen 5 2500U |
4 | Cores | 4 |
4 | Threads | 8 |
hybrid (big.LITTLE) | Core architecture | normal |
No | Hyperthreading | Yes |
No | Overclocking ? | No |
2.40 GHz 2x Kryo |
A-Core | 2.00 GHz (3.60 GHz) |
1.60 GHz 2x Kryo |
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 821 | Characteristic | AMD Ryzen 5 2500U |
Qualcomm AI engine | AI hardware | -- |
Hexagon 680 | AI specifications | -- |
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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Qualcomm Adreno 530 | GPU | AMD Radeon RX Vega 8 (Raven Ridge) |
0.62 GHz | GPU frequency | 1.10 GHz |
0.62 GHz | GPU (Turbo) | -- |
5 | GPU Generation | 8 |
14 nm | Technology | 14 nm |
0 | Max. displays | 3 |
-- | Compute units | 8 |
256 | Shader | 512 |
No | Hardware Raytracing | No |
No | Frame Generation | No |
-- | Max. GPU Memory | 2 GB |
11,1 | DirectX Version | 12 |
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 530 | GPU | AMD Radeon RX Vega 8 (Raven Ridge) |
Decode | Codec h265 / HEVC (8 bit) | Decode / Encode |
No | Codec h265 / HEVC (10 bit) | Decode / Encode |
Decode | Codec h264 | Decode / Encode |
Decode | Codec VP9 | Decode / Encode |
Decode | Codec VP8 | Decode / Encode |
No | Codec AV1 | No |
No | Codec AVC | Decode / Encode |
Decode | Codec VC-1 | Decode |
Decode | Codec JPEG | Decode / Encode |
Memory & PCIeThe Qualcomm Snapdragon 821 supports a maximum of 8 GB of memory in 2 memory channels. The AMD Ryzen 5 2500U can connect up to 32 GB of memory in 2 memory channels. |
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Qualcomm Snapdragon 821 | Characteristic | AMD Ryzen 5 2500U |
LPDDR4-3733 | Memory | DDR4-2400 |
8 GB | Max. Memory | 32 GB |
2 (Dual Channel) | Memory channels | 2 (Dual Channel) |
14.9 GB/s | Max. Bandwidth | 38.4 GB/s |
No | ECC | Yes |
-- | L2 Cache | -- |
-- | L3 Cache | 4.00 MB |
-- | PCIe version | 3.0 |
-- | PCIe lanes | 12 |
-- | PCIe Bandwidth | 11.8 GB/s |
Thermal ManagementThe TDP (Thermal Design Power) of a processor specifies the required cooling solution. The Qualcomm Snapdragon 821 has a TDP of --, that of the AMD Ryzen 5 2500U is 15 W. |
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Qualcomm Snapdragon 821 | Characteristic | AMD Ryzen 5 2500U |
-- | TDP (PL1 / PBP) | 15 W |
-- | TDP (PL2) | -- |
-- | TDP up | 25 W |
-- | TDP down | 12 W |
-- | Tjunction max. | 95 °C |
Technical detailsThe Qualcomm Snapdragon 821 has a 0.00 MB cache, while the AMD Ryzen 5 2500U cache has a total of 4.00 MB. |
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Qualcomm Snapdragon 821 | Characteristic | AMD Ryzen 5 2500U |
14 nm | Technology | 14 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 | AM4 (PGA 1331) |
None | Virtualization | AMD-V, SVM |
No | AES-NI | Yes |
Android | Operating systems | Windows 10, Linux |
Q3/2016 | Release date | Q4/2017 |
-- | Release price | 150 $ |
show more data | show more data | |
Qualcomm Snapdragon 821
4C 4T @ 2.40 GHz |
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AMD Ryzen 5 2500U
4C 8T @ 3.60 GHz |
Qualcomm Snapdragon 821
4C 4T @ 2.40 GHz |
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AMD Ryzen 5 2500U
4C 8T @ 3.00 GHz |
Qualcomm Snapdragon 821
Qualcomm Adreno 530 @ 0.62 GHz |
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AMD Ryzen 5 2500U
AMD Radeon RX Vega 8 (Raven Ridge) @ 1.10 GHz |
Qualcomm Snapdragon 821
4C 4T @ 2.40 GHz |
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AMD Ryzen 5 2500U
4C 8T @ 3.00 GHz |
Qualcomm Snapdragon 821
4C 4T @ 2.40 GHz |
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AMD Ryzen 5 2500U
4C 8T @ 3.60 GHz |
Qualcomm Snapdragon 821
4C 4T @ 2.40 GHz |
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AMD Ryzen 5 2500U
4C 8T @ 3.00 GHz |
Qualcomm Snapdragon 821
4C 4T @ 2.40 GHz |
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AMD Ryzen 5 2500U
4C 8T @ 3.60 GHz |
Qualcomm Snapdragon 821
4C 4T @ 2.40 GHz |
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AMD Ryzen 5 2500U
4C 8T @ 3.00 GHz |
Qualcomm Snapdragon 821
4C 4T @ 2.40 GHz |
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AMD Ryzen 5 2500U
4C 8T @ 3.60 GHz |
Qualcomm Snapdragon 821
4C 4T @ 2.40 GHz |
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AMD Ryzen 5 2500U
4C 8T @ 3.00 GHz |
Qualcomm Snapdragon 821
4C 4T @ 2.40 GHz |
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AMD Ryzen 5 2500U
4C 8T @ 3.00 GHz |
Qualcomm Snapdragon 821
4C 4T @ 2.40 GHz |
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AMD Ryzen 5 2500U
4C 8T @ 2.00 GHz |
Qualcomm Snapdragon 821
4C 4T @ 2.40 GHz |
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AMD Ryzen 5 2500U
4C 8T @ 3.60 GHz |
Qualcomm Snapdragon 821
4C 4T @ 2.40 GHz |
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AMD Ryzen 5 2500U
4C 8T @ 3.00 GHz |
Devices using this processor |
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Qualcomm Snapdragon 821 | AMD Ryzen 5 2500U |
Unknown | Unknown |