AMD Athlon II X4 645 | Qualcomm Snapdragon 820 | |
CPU comparisonAMD Athlon II X4 645 or Qualcomm Snapdragon 820 - 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 Athlon II X4 645 has 4 cores with 4 threads and clocks with a maximum frequency of 3.10 GHz. Up to 16 GB of memory is supported in 2 memory channels. The AMD Athlon II X4 645 was released in Q3/2010. The Qualcomm Snapdragon 820 has 4 cores with 4 threads and clocks with a maximum frequency of 2.15 GHz. The CPU supports up to 12 GB of memory in 4 memory channels. The Qualcomm Snapdragon 820 was released in Q4/2015. |
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AMD Athlon II (52) | Family | Qualcomm Snapdragon (102) |
AMD Athlon II X4 (Propus) (10) | CPU group | Qualcomm Snapdragon 820 (3) |
1 | Generation | 3 |
Propus | Architecture | Kryo |
Desktop / Server | Segment | Mobile |
-- | Predecessor | -- |
-- | Successor | -- |
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CPU Cores and Base FrequencyThe AMD Athlon II X4 645 is a 4 core processor with a clock frequency of 3.10 GHz. The Qualcomm Snapdragon 820 has 4 CPU cores with a clock frequency of 2.15 GHz. |
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AMD Athlon II X4 645 | Characteristic | Qualcomm Snapdragon 820 |
4 | Cores | 4 |
4 | Threads | 4 |
normal | Core architecture | hybrid (big.LITTLE) |
No | Hyperthreading | No |
No | Overclocking ? | No |
3.10 GHz | A-Core | 2.15 GHz 2x Kryo |
-- | B-Core | 1.60 GHz 2x Kryo |
Artificial Intelligence and Machine LearningThe 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 Athlon II X4 645 | Characteristic | Qualcomm Snapdragon 820 |
-- | 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 Athlon II X4 645 supports a maximum of 16 GB of memory in 2 memory channels. The Qualcomm Snapdragon 820 can connect up to 12 GB of memory in 4 memory channels. |
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AMD Athlon II X4 645 | Characteristic | Qualcomm Snapdragon 820 |
DDR3-1333 | Memory | LPDDR4-3733 |
16 GB | Max. Memory | 12 GB |
2 (Dual Channel) | Memory channels | 4 (Quad Channel) |
21.3 GB/s | Max. Bandwidth | 14.9 GB/s |
No | ECC | No |
2.00 MB | L2 Cache | -- |
-- | L3 Cache | -- |
2.0 | PCIe version | -- |
-- | PCIe lanes | -- |
-- | PCIe Bandwidth | -- |
Thermal ManagementThe TDP (Thermal Design Power) of a processor specifies the required cooling solution. The AMD Athlon II X4 645 has a TDP of 95 W, that of the Qualcomm Snapdragon 820 is --. |
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AMD Athlon II X4 645 | Characteristic | Qualcomm Snapdragon 820 |
95 W | TDP (PL1 / PBP) | -- |
-- | TDP (PL2) | -- |
-- | TDP up | -- |
-- | TDP down | -- |
-- | Tjunction max. | -- |
Technical detailsThe AMD Athlon II X4 645 has a 2.00 MB cache, while the Qualcomm Snapdragon 820 cache has a total of 0.00 MB. |
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AMD Athlon II X4 645 | Characteristic | Qualcomm Snapdragon 820 |
45 nm | Technology | 14 nm |
Unknown | Chip design | Chiplet |
x86-64 (64 bit) | Instruction set (ISA) | Armv8-A (64 bit) |
MMX, 3DNow!, SSE3, SSE4a | ISA extensions | -- |
AM3 | Socket | -- |
AMD-V | Virtualization | None |
No | AES-NI | No |
Windows 10, Linux | Operating systems | Android |
Q3/2010 | Release date | Q4/2015 |
-- | Release price | -- |
show more data | show more data | |
AMD Athlon II X4 645
4C 4T @ 3.10 GHz |
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Qualcomm Snapdragon 820
4C 4T @ 2.15 GHz |
AMD Athlon II X4 645
4C 4T @ 3.10 GHz |
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Qualcomm Snapdragon 820
4C 4T @ 2.15 GHz |
AMD Athlon II X4 645
4C 4T @ 3.10 GHz |
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Qualcomm Snapdragon 820
4C 4T @ 2.15 GHz |
AMD Athlon II X4 645
4C 4T @ 3.10 GHz |
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Qualcomm Snapdragon 820
4C 4T @ 2.15 GHz |
AMD Athlon II X4 645
4C 4T @ 3.10 GHz |
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Qualcomm Snapdragon 820
4C 4T @ 2.15 GHz |
AMD Athlon II X4 645
4C 4T @ 3.10 GHz |
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Qualcomm Snapdragon 820
4C 4T @ 2.15 GHz |
AMD Athlon II X4 645
4C 4T @ 3.10 GHz |
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Qualcomm Snapdragon 820
4C 4T @ 2.15 GHz |
AMD Athlon II X4 645
4C 4T @ 3.10 GHz |
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Qualcomm Snapdragon 820
4C 4T @ 2.15 GHz |
AMD Athlon II X4 645
4C 4T @ 3.10 GHz |
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Qualcomm Snapdragon 820
4C 4T @ 2.15 GHz |
AMD Athlon II X4 645
@ 0.00 GHz |
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Qualcomm Snapdragon 820
Qualcomm Adreno 530 @ 0.62 GHz |
AMD Athlon II X4 645
4C 4T @ 3.10 GHz |
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Qualcomm Snapdragon 820
4C 4T @ 2.15 GHz |
Devices using this processor |
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AMD Athlon II X4 645 | Qualcomm Snapdragon 820 |
Unknown | Unknown |