Qualcomm Snapdragon 821 | Qualcomm Snapdragon 625 | |
CPU comparisonQualcomm Snapdragon 821 or Qualcomm Snapdragon 625 - 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 Qualcomm Snapdragon 625 has 8 cores with 8 threads and clocks with a maximum frequency of 2.00 GHz. The CPU supports up to 8 GB of memory in 2 memory channels. The Qualcomm Snapdragon 625 was released in Q2/2016. |
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Qualcomm Snapdragon (103) | Family | Qualcomm Snapdragon (103) |
Qualcomm Snapdragon 820 (3) | CPU group | Qualcomm Snapdragon 625/626 (2) |
3 | Generation | 3 |
Kryo | Architecture | Cortex-A53 |
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 Qualcomm Snapdragon 625 has 8 CPU cores with a clock frequency of 2.00 GHz. |
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Qualcomm Snapdragon 821 | Characteristic | Qualcomm Snapdragon 625 |
4 | Cores | 8 |
4 | Threads | 8 |
hybrid (big.LITTLE) | Core architecture | normal |
No | Hyperthreading | No |
No | Overclocking ? | No |
2.40 GHz 2x Kryo |
A-Core | 2.00 GHz 8x Cortex-A53 |
1.60 GHz 2x Kryo |
B-Core | -- |
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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Qualcomm Snapdragon 821 | Characteristic | Qualcomm Snapdragon 625 |
Qualcomm AI engine | AI hardware | Qualcomm AI engine |
Hexagon 680 | AI specifications | Hexagon 546 |
-- | 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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Qualcomm Adreno 530 | GPU | Qualcomm Adreno 506 |
0.62 GHz | GPU frequency | 0.65 GHz |
0.62 GHz | GPU (Turbo) | 0.65 GHz |
5 | GPU Generation | 5 |
14 nm | Technology | 14 nm |
0 | Max. displays | 0 |
-- | Compute units | -- |
256 | Shader | 96 |
No | Hardware Raytracing | No |
No | Frame Generation | No |
-- | Max. GPU Memory | -- |
11,1 | DirectX Version | 11 |
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 | Qualcomm Adreno 506 |
Decode | Codec h265 / HEVC (8 bit) | Decode |
No | Codec h265 / HEVC (10 bit) | No |
Decode | Codec h264 | Decode / Encode |
Decode | Codec VP9 | No |
Decode | Codec VP8 | No |
No | Codec AV1 | No |
No | Codec AVC | No |
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 Qualcomm Snapdragon 625 can connect up to 8 GB of memory in 2 memory channels. |
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Qualcomm Snapdragon 821 | Characteristic | Qualcomm Snapdragon 625 |
LPDDR4-3733 | Memory | LPDDR3-1866 |
8 GB | Max. Memory | 8 GB |
2 (Dual Channel) | Memory channels | 2 (Dual Channel) |
14.9 GB/s | Max. Bandwidth | 14.9 GB/s |
No | ECC | No |
-- | L2 Cache | -- |
-- | L3 Cache | -- |
-- | PCIe version | -- |
-- | PCIe lanes | -- |
-- | PCIe Bandwidth | -- |
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 Qualcomm Snapdragon 625 is --. |
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Qualcomm Snapdragon 821 | Characteristic | Qualcomm Snapdragon 625 |
-- | TDP (PL1 / PBP) | -- |
-- | TDP (PL2) | -- |
-- | TDP up | -- |
-- | TDP down | -- |
-- | Tjunction max. | -- |
Technical detailsThe Qualcomm Snapdragon 821 has a 0.00 MB cache, while the Qualcomm Snapdragon 625 cache has a total of 0.00 MB. |
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Qualcomm Snapdragon 821 | Characteristic | Qualcomm Snapdragon 625 |
14 nm | Technology | 14 nm |
Chiplet | Chip design | Chiplet |
Armv8-A (64 bit) | Instruction set (ISA) | Armv8-A (64 bit) |
-- | ISA extensions | -- |
-- | Socket | -- |
None | Virtualization | None |
No | AES-NI | No |
Android | Operating systems | Android |
Q3/2016 | Release date | Q2/2016 |
-- | Release price | -- |
show more data | show more data | |
Qualcomm Snapdragon 821
4C 4T @ 2.40 GHz |
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Qualcomm Snapdragon 625
8C 8T @ 2.00 GHz |
Qualcomm Snapdragon 821
4C 4T @ 2.40 GHz |
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Qualcomm Snapdragon 625
8C 8T @ 2.00 GHz |
Qualcomm Snapdragon 821
4C 4T @ 2.40 GHz |
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Qualcomm Snapdragon 625
8C 8T @ 2.00 GHz |
Qualcomm Snapdragon 821
4C 4T @ 2.40 GHz |
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Qualcomm Snapdragon 625
8C 8T @ 2.00 GHz |
Qualcomm Snapdragon 821
Qualcomm Adreno 530 @ 0.62 GHz |
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Qualcomm Snapdragon 625
Qualcomm Adreno 506 @ 0.65 GHz |
Qualcomm Snapdragon 821
4C 4T @ 2.40 GHz |
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Qualcomm Snapdragon 625
8C 8T @ 2.00 GHz |
Devices using this processor |
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Qualcomm Snapdragon 821 | Qualcomm Snapdragon 625 |
Unknown | Unknown |