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Qualcomm Snapdragon 636 | Valve Steam Deck (AMD Custom APU 0405) | |
CPU comparisonQualcomm Snapdragon 636 or Valve Steam Deck (AMD Custom APU 0405) - 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 636 has 8 cores with 8 threads and clocks with a maximum frequency of 1.80 GHz. Up to 8 GB of memory is supported in 2 memory channels. The Qualcomm Snapdragon 636 was released in Q4/2017. The Valve Steam Deck (AMD Custom APU 0405) has 4 cores with 8 threads and clocks with a maximum frequency of 3.50 GHz. The CPU supports up to 16 GB of memory in 4 memory channels. The Valve Steam Deck (AMD Custom APU 0405) was released in Q4/2021. |
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Qualcomm Snapdragon (104) | Family | AMD Ryzen 5 (86) |
Qualcomm Snapdragon 636 (1) | CPU group | AMD Aerith (Steam Deck) (1) |
5 | Generation | 3 |
Kryo 260 | Architecture | Aerith (Zen 2) |
Mobile | Segment | Mobile |
-- | Predecessor | -- |
-- | Successor | Valve Steam Deck (2023 Refresh) |
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CPU Cores and Base FrequencyThe Qualcomm Snapdragon 636 has 8 CPU cores and can calculate 8 threads in parallel. The clock frequency of the Qualcomm Snapdragon 636 is 1.80 GHz while the Valve Steam Deck (AMD Custom APU 0405) has 4 CPU cores and 8 threads can calculate simultaneously. The clock frequency of the Valve Steam Deck (AMD Custom APU 0405) is at 2.40 GHz (3.50 GHz). |
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Qualcomm Snapdragon 636 | Characteristic | Valve Steam Deck (AMD Custom APU 0405) |
8 | Cores | 4 |
8 | Threads | 8 |
hybrid (big.LITTLE) | Core architecture | normal |
No | Hyperthreading | Yes |
No | Overclocking ? | No |
1.80 GHz 4x Kryo 260 Gold |
A-Core | 2.40 GHz (3.50 GHz) |
1.60 GHz 4x Kryo 260 Silver |
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 636 | Characteristic | Valve Steam Deck (AMD Custom APU 0405) |
Qualcomm AI engine | AI hardware | -- |
Hexagon DSP | AI specifications | -- |
-- | NPU + CPU + iGPU | -- |
Integrated graphics (iGPU)The Qualcomm Snapdragon 636 or Valve Steam Deck (AMD Custom APU 0405) has integrated graphics, called iGPU for short. The iGPU uses the system's main memory as graphics memory and sits on the processor's die. |
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Qualcomm Adreno 509 | GPU | AMD Custom Radeon Graphics (Steam Deck) |
0.72 GHz | GPU frequency | 1.00 GHz |
0.72 GHz | GPU (Turbo) | 1.60 GHz |
5 | GPU Generation | -- |
14 nm | Technology | 7 nm |
0 | Max. displays | 2 |
-- | Compute units | 8 |
128 | Shader | 512 |
No | Hardware Raytracing | No |
No | Frame Generation | No |
-- | Max. GPU Memory | 8 GB |
12.1 | 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 509 | GPU | AMD Custom Radeon Graphics (Steam Deck) |
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 636 can use up to 8 GB of memory in 2 memory channels. The maximum memory bandwidth is 10.6 GB/s. The Valve Steam Deck (AMD Custom APU 0405) supports up to 16 GB of memory in 4 memory channels and achieves a memory bandwidth of up to 88.0 GB/s. |
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Qualcomm Snapdragon 636 | Characteristic | Valve Steam Deck (AMD Custom APU 0405) |
Memory | LPDDR5-5500 | |
8 GB | Max. Memory | 16 GB |
2 (Dual Channel) | Memory channels | 4 (Quad Channel) |
10.6 GB/s | Max. Bandwidth | 88.0 GB/s |
No | ECC | No |
-- | L2 Cache | 2.00 MB |
-- | L3 Cache | 4.00 MB |
-- | PCIe version | 3.0 |
-- | PCIe lanes | 8 |
-- | PCIe Bandwidth | 7.9 GB/s |
Thermal ManagementThe thermal design power (TDP for short) of the Qualcomm Snapdragon 636 is --, while the Valve Steam Deck (AMD Custom APU 0405) has a TDP of 15 W. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently. |
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Qualcomm Snapdragon 636 | Characteristic | Valve Steam Deck (AMD Custom APU 0405) |
-- | TDP (PL1 / PBP) | 15 W |
-- | TDP (PL2) | -- |
-- | TDP up | -- |
-- | TDP down | 4 W |
-- | Tjunction max. | 100 °C |
Technical detailsThe Qualcomm Snapdragon 636 is manufactured in 14 nm and has 0.00 MB cache. The Valve Steam Deck (AMD Custom APU 0405) is manufactured in 7 nm and has a 6.00 MB cache. |
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Qualcomm Snapdragon 636 | Characteristic | Valve Steam Deck (AMD Custom APU 0405) |
14 nm | Technology | 7 nm |
Chiplet | Chip design | Monolithic |
Armv8-A (64 bit) | Instruction set (ISA) | x86-64 (64 bit) |
-- | ISA extensions | SSE4a, SSE4.1, SSE4.2, AVX2, FMA3 |
-- | Socket | FF3 |
None | Virtualization | AMD-V, SVM |
No | AES-NI | Yes |
Android | Operating systems | SteamOS (Arch Linux) |
Q4/2017 | Release date | Q4/2021 |
-- | Release price | -- |
show more data | show more data | |
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Qualcomm Snapdragon 636
8C 8T @ 1.80 GHz |
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Valve Steam Deck (AMD Custom APU 0405)
4C 8T @ 3.50 GHz |
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Qualcomm Snapdragon 636
8C 8T @ 1.80 GHz |
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Valve Steam Deck (AMD Custom APU 0405)
4C 8T @ 2.80 GHz |
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Qualcomm Snapdragon 636
8C 8T @ 1.80 GHz |
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Valve Steam Deck (AMD Custom APU 0405)
4C 8T @ 3.50 GHz |
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Qualcomm Snapdragon 636
8C 8T @ 1.80 GHz |
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Valve Steam Deck (AMD Custom APU 0405)
4C 8T @ 2.80 GHz |
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Qualcomm Snapdragon 636
Qualcomm Adreno 509 @ 0.72 GHz |
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Valve Steam Deck (AMD Custom APU 0405)
AMD Custom Radeon Graphics (Steam Deck) @ 1.60 GHz |
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Qualcomm Snapdragon 636
8C 8T @ 1.80 GHz |
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Valve Steam Deck (AMD Custom APU 0405)
4C 8T @ 3.50 GHz |
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Qualcomm Snapdragon 636
8C 8T @ 1.80 GHz |
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Valve Steam Deck (AMD Custom APU 0405)
4C 8T @ 3.50 GHz |
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Qualcomm Snapdragon 636
8C 8T @ 1.80 GHz |
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Valve Steam Deck (AMD Custom APU 0405)
4C 8T @ 3.50 GHz |
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Qualcomm Snapdragon 636
8C 8T @ 1.80 GHz |
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Valve Steam Deck (AMD Custom APU 0405)
4C 8T @ 2.80 GHz |
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Qualcomm Snapdragon 636
8C 8T @ 1.80 GHz |
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Valve Steam Deck (AMD Custom APU 0405)
4C 8T @ 2.40 GHz |
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Qualcomm Snapdragon 636
8C 8T @ 1.80 GHz |
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Valve Steam Deck (AMD Custom APU 0405)
4C 8T @ 2.80 GHz |
Devices using this processor |
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Qualcomm Snapdragon 636 | Valve Steam Deck (AMD Custom APU 0405) |
Unknown | Valve Steam Deck |