Qualcomm Snapdragon 425 | Qualcomm Snapdragon 821 | |
CPU comparisonIn this CPU comparison, we compare the Qualcomm Snapdragon 425 and the Qualcomm Snapdragon 821 and use benchmarks to check which processor is faster.
We compare the Qualcomm Snapdragon 425 4 core processor released in Q3/2016 with the Qualcomm Snapdragon 821 which has 4 CPU cores and was introduced in Q3/2016. |
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Qualcomm Snapdragon (103) | Family | Qualcomm Snapdragon (103) |
Qualcomm Snapdragon 425/427 (2) | CPU group | Qualcomm Snapdragon 820 (3) |
3 | Generation | 3 |
Cortex-A53 | Architecture | Kryo |
Mobile | Segment | Mobile |
-- | Predecessor | -- |
-- | Successor | -- |
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CPU Cores and Base FrequencyThe Qualcomm Snapdragon 425 is a 4 core processor with a clock frequency of 1.40 GHz. The processor can compute 4 threads at the same time. The Qualcomm Snapdragon 821 clocks with 2.40 GHz, has 4 CPU cores and can calculate 4 threads in parallel. |
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Qualcomm Snapdragon 425 | Characteristic | Qualcomm Snapdragon 821 |
4 | Cores | 4 |
4 | Threads | 4 |
normal | Core architecture | hybrid (big.LITTLE) |
No | Hyperthreading | No |
No | Overclocking ? | No |
1.40 GHz 4x Cortex-A53 |
A-Core | 2.40 GHz 2x Kryo |
-- | B-Core | 1.60 GHz 2x Kryo |
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 425 | Characteristic | Qualcomm Snapdragon 821 |
Qualcomm AI engine | AI hardware | Qualcomm AI engine |
Hexagon 536 | AI specifications | Hexagon 680 |
-- | NPU + CPU + iGPU | -- |
Integrated graphics (iGPU)Graphics (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 308 | GPU | Qualcomm Adreno 530 |
0.50 GHz | GPU frequency | 0.62 GHz |
0.50 GHz | GPU (Turbo) | 0.62 GHz |
3 | GPU Generation | 5 |
28 nm | Technology | 14 nm |
0 | Max. displays | 0 |
-- | Compute units | -- |
24 | Shader | 256 |
No | Hardware Raytracing | No |
No | Frame Generation | No |
-- | Max. GPU Memory | -- |
11 | 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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Qualcomm Adreno 308 | GPU | Qualcomm Adreno 530 |
Decode | Codec h265 / HEVC (8 bit) | Decode |
No | Codec h265 / HEVC (10 bit) | No |
Decode / Encode | Codec h264 | Decode |
No | Codec VP9 | Decode |
No | Codec VP8 | Decode |
No | Codec AV1 | No |
No | Codec AVC | No |
Decode | Codec VC-1 | Decode |
Decode / Encode | Codec JPEG | Decode |
Memory & PCIeUp to 4 GB of memory in a maximum of 2 memory channels is supported by the Qualcomm Snapdragon 425, while the Qualcomm Snapdragon 821 supports a maximum of 8 GB of memory with a maximum memory bandwidth of 14.9 GB/s enabled. |
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Qualcomm Snapdragon 425 | Characteristic | Qualcomm Snapdragon 821 |
LPDDR3-1333 | Memory | LPDDR4-3733 |
4 GB | Max. Memory | 8 GB |
2 (Dual Channel) | Memory channels | 2 (Dual Channel) |
10.7 GB/s | Max. Bandwidth | 14.9 GB/s |
No | ECC | No |
-- | L2 Cache | -- |
-- | L3 Cache | -- |
-- | PCIe version | -- |
-- | PCIe lanes | -- |
-- | PCIe Bandwidth | -- |
Thermal ManagementThe Qualcomm Snapdragon 425 has a TDP of --. The TDP of the Qualcomm Snapdragon 821 is --. System integrators use the TDP of the processor as a guide when dimensioning the cooling solution. |
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Qualcomm Snapdragon 425 | Characteristic | Qualcomm Snapdragon 821 |
-- | TDP (PL1 / PBP) | -- |
-- | TDP (PL2) | -- |
-- | TDP up | -- |
-- | TDP down | -- |
-- | Tjunction max. | -- |
Technical detailsThe Qualcomm Snapdragon 425 has 0.00 MB cache and is manufactured in 28 nm. The cache of Qualcomm Snapdragon 821 is at 0.00 MB. The processor is manufactured in 14 nm. |
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Qualcomm Snapdragon 425 | Characteristic | Qualcomm Snapdragon 821 |
28 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 | Q3/2016 |
-- | Release price | -- |
show more data | show more data | |
Qualcomm Snapdragon 425
4C 4T @ 1.40 GHz |
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Qualcomm Snapdragon 821
4C 4T @ 2.40 GHz |
Qualcomm Snapdragon 425
4C 4T @ 1.40 GHz |
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Qualcomm Snapdragon 821
4C 4T @ 2.40 GHz |
Qualcomm Snapdragon 425
4C 4T @ 1.40 GHz |
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Qualcomm Snapdragon 821
4C 4T @ 2.40 GHz |
Qualcomm Snapdragon 425
4C 4T @ 1.40 GHz |
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Qualcomm Snapdragon 821
4C 4T @ 2.40 GHz |
Qualcomm Snapdragon 425
Qualcomm Adreno 308 @ 0.50 GHz |
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Qualcomm Snapdragon 821
Qualcomm Adreno 530 @ 0.62 GHz |
Qualcomm Snapdragon 425
4C 4T @ 1.40 GHz |
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Qualcomm Snapdragon 821
4C 4T @ 2.40 GHz |
Devices using this processor |
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Qualcomm Snapdragon 425 | Qualcomm Snapdragon 821 |
Unknown | Unknown |