Valve Steam Deck (AMD Custom APU 0405) vs Qualcomm Snapdragon 8s Gen 3
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CPU comparison with benchmarks
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| Valve Steam Deck (AMD Custom APU 0405) | Qualcomm Snapdragon 8s Gen 3 | |
CPU comparisonValve Steam Deck (AMD Custom APU 0405) or Qualcomm Snapdragon 8s Gen 3 - 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 Valve Steam Deck (AMD Custom APU 0405) has 4 cores with 8 threads and clocks with a maximum frequency of 3.50 GHz. Up to 16 GB of memory is supported in 4 memory channels. The Valve Steam Deck (AMD Custom APU 0405) was released in Q4/2021. The Qualcomm Snapdragon 8s Gen 3 has 8 cores with 8 threads and clocks with a maximum frequency of 3.00 GHz. The CPU supports up to 24 GB of memory in 4 memory channels. The Qualcomm Snapdragon 8s Gen 3 was released in Q1/2024. |
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| AMD Ryzen 5 (86) | Family | Qualcomm Snapdragon (102) |
| AMD Aerith (Steam Deck) (1) | CPU group | Qualcomm Snapdragon 8 Gen 3 (2) |
| 3 | Generation | 3 |
| Aerith (Zen 2) | Architecture | -- |
| Mobile | Segment | Mobile |
| -- | Predecessor | -- |
| Valve Steam Deck (2023 Refresh) | Successor | -- |
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CPU Cores and Base FrequencyThe Valve Steam Deck (AMD Custom APU 0405) is a 4 core processor with a clock frequency of 2.40 GHz (3.50 GHz). The Qualcomm Snapdragon 8s Gen 3 has 8 CPU cores with a clock frequency of 3.00 GHz. |
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| Valve Steam Deck (AMD Custom APU 0405) | Characteristic | Qualcomm Snapdragon 8s Gen 3 |
| 4 | Cores | 8 |
| 8 | Threads | 8 |
| normal | Core architecture | hybrid (Prime / big.LITTLE) |
| Yes | Hyperthreading | No |
| No | Overclocking ? | No |
| 2.40 GHz (3.50 GHz) | A-Core | 3.00 GHz 1x Cortex-X4 |
| -- | B-Core | 2.80 GHz 4x Cortex-A720 |
| -- | C-Core | 2.00 GHz 3x Cortex-A520 |
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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| Valve Steam Deck (AMD Custom APU 0405) | Characteristic | Qualcomm Snapdragon 8s Gen 3 |
| -- | AI hardware | Qualcomm AI engine |
| -- | AI specifications | Hexagon NPU @ 10 TOPS ? |
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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| AMD Custom Radeon Graphics (Steam Deck) | GPU | Qualcomm Adreno 740 |
| 1.00 GHz | GPU frequency | 0.72 GHz |
| 1.60 GHz | GPU (Turbo) | -- |
| -- | GPU Generation | 8 |
| 7 nm | Technology | 4 nm |
| 2 | Max. displays | 2 |
| 8 | Compute units | -- |
| 512 | Shader | -- |
| No | Hardware Raytracing | Yes |
| No | Frame Generation | No |
| 8 GB | Max. GPU Memory | 6 GB |
| 12 | DirectX Version | 12.1 |
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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| AMD Custom Radeon Graphics (Steam Deck) | GPU | Qualcomm Adreno 740 |
| Decode / Encode | Codec h265 / HEVC (8 bit) | Decode / Encode |
| Decode / Encode | Codec h265 / HEVC (10 bit) | Decode / Encode |
| Decode / Encode | Codec h264 | Decode / Encode |
| Decode / Encode | Codec VP9 | Decode / Encode |
| Decode / Encode | Codec VP8 | Decode / Encode |
| No | Codec AV1 | Decode |
| Decode / Encode | Codec AVC | Decode |
| Decode | Codec VC-1 | Decode |
| Decode / Encode | Codec JPEG | Decode / Encode |
Memory & PCIeThe Valve Steam Deck (AMD Custom APU 0405) supports a maximum of 16 GB of memory in 4 memory channels. The Qualcomm Snapdragon 8s Gen 3 can connect up to 24 GB of memory in 4 memory channels. |
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| Valve Steam Deck (AMD Custom APU 0405) | Characteristic | Qualcomm Snapdragon 8s Gen 3 |
| LPDDR5-5500 | Memory | LPDDR5X-8400 |
| 16 GB | Max. Memory | 24 GB |
| 4 (Quad Channel) | Memory channels | 4 (Quad Channel) |
| 88.0 GB/s | Max. Bandwidth | 67.0 GB/s |
| No | ECC | No |
| 2.00 MB | L2 Cache | -- |
| 4.00 MB | L3 Cache | 12.00 MB |
| 3.0 | PCIe version | -- |
| 8 | PCIe lanes | -- |
| 7.9 GB/s | PCIe Bandwidth | -- |
Thermal ManagementThe TDP (Thermal Design Power) of a processor specifies the required cooling solution. The Valve Steam Deck (AMD Custom APU 0405) has a TDP of 15 W, that of the Qualcomm Snapdragon 8s Gen 3 is 10 W. |
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| Valve Steam Deck (AMD Custom APU 0405) | Characteristic | Qualcomm Snapdragon 8s Gen 3 |
| 15 W | TDP (PL1 / PBP) | 10 W |
| -- | TDP (PL2) | -- |
| -- | TDP up | -- |
| 4 W | TDP down | -- |
| 100 °C | Tjunction max. | -- |
Technical detailsThe Valve Steam Deck (AMD Custom APU 0405) has a 6.00 MB cache, while the Qualcomm Snapdragon 8s Gen 3 cache has a total of 12.00 MB. |
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| Valve Steam Deck (AMD Custom APU 0405) | Characteristic | Qualcomm Snapdragon 8s Gen 3 |
| 7 nm | Technology | 4 nm |
| Monolithic | Chip design | Chiplet |
| x86-64 (64 bit) | Instruction set (ISA) | Armv9-A (64 bit) |
| SSE4a, SSE4.1, SSE4.2, AVX2, FMA3 | ISA extensions | -- |
| FF3 | Socket | -- |
| AMD-V, SVM | Virtualization | None |
| Yes | AES-NI | No |
| SteamOS (Arch Linux) | Operating systems | Android, Windows 10/11 (ARM) |
| Q4/2021 | Release date | Q1/2024 |
| -- | Release price | -- |
| show more data | show more data | |
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8C 8T @ 3.00 GHz buy now on Amazon and save!
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Rate these processors
iGPU - FP32 Performance (Single-precision GFLOPS)
The theoretical computing performance of the internal graphics unit of the processor with simple accuracy (32 bit) in GFLOPS. GFLOPS indicates how many billion floating point operations the iGPU can perform per second.
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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 8s Gen 3
Qualcomm Adreno 740 @ 0.72 GHz |
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Cinebench 2024 (Single-Core)
The Cinebench 2024 benchmark is based on the Redshift rendering engine, which is also used in Maxon's 3D program Cinema 4D. The benchmark runs are each 10 minutes long to test whether the processor is limited by its heat generation.
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Valve Steam Deck (AMD Custom APU 0405)
4C 8T @ 3.50 GHz |
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Qualcomm Snapdragon 8s Gen 3
8C 8T @ 3.00 GHz |
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Cinebench 2024 (Multi-Core)
The Multi-Core test of the Cinebench 2024 benchmark uses all cpu cores to render using the Redshift rendering engine, which is also used in Maxons Cinema 4D. The benchmark run is 10 minutes long to test whether the processor is limited by its heat generation.
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Valve Steam Deck (AMD Custom APU 0405)
4C 8T @ 3.50 GHz |
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Qualcomm Snapdragon 8s Gen 3
8C 8T @ 3.00 GHz |
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Cinebench R23 (Single-Core)
Cinebench R23 is the successor of Cinebench R20 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
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Valve Steam Deck (AMD Custom APU 0405)
4C 8T @ 3.50 GHz |
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Qualcomm Snapdragon 8s Gen 3
8C 8T @ 3.00 GHz |
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Cinebench R23 (Multi-Core)
Cinebench R23 is the successor of Cinebench R20 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
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Valve Steam Deck (AMD Custom APU 0405)
4C 8T @ 2.80 GHz |
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Qualcomm Snapdragon 8s Gen 3
8C 8T @ 3.00 GHz |
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Geekbench 5, 64bit (Single-Core)
Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
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Valve Steam Deck (AMD Custom APU 0405)
4C 8T @ 3.50 GHz |
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Qualcomm Snapdragon 8s Gen 3
8C 8T @ 3.00 GHz |
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Geekbench 5, 64bit (Multi-Core)
Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
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Valve Steam Deck (AMD Custom APU 0405)
4C 8T @ 2.80 GHz |
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Qualcomm Snapdragon 8s Gen 3
8C 8T @ 3.00 GHz |
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Geekbench 6 (Single-Core)
Geekbench 6 is a benchmark for modern computers, notebooks and smartphones. What is new is an optimized utilization of newer CPU architectures, e.g. based on the big.LITTLE concept and combining CPU cores of different sizes. The single-core benchmark only evaluates the performance of the fastest CPU core, the number of CPU cores in a processor is irrelevant here.
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Valve Steam Deck (AMD Custom APU 0405)
4C 8T @ 3.50 GHz |
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Qualcomm Snapdragon 8s Gen 3
8C 8T @ 3.00 GHz |
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Geekbench 6 (Multi-Core)
Geekbench 6 is a benchmark for modern computers, notebooks and smartphones. What is new is an optimized utilization of newer CPU architectures, e.g. based on the big.LITTLE concept and combining CPU cores of different sizes. The multi-core benchmark evaluates the performance of all of the processor's CPU cores. Virtual thread improvements such as AMD SMT or Intel's Hyper-Threading have a positive impact on the benchmark result.
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Valve Steam Deck (AMD Custom APU 0405)
4C 8T @ 2.80 GHz |
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Qualcomm Snapdragon 8s Gen 3
8C 8T @ 3.00 GHz |
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Performance for Artificial Intelligence (AI) and Machine Learning (ML)
Processors 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. The performance is given in the number (trillions) of arithmetic operations per second (TOPS).
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Valve Steam Deck (AMD Custom APU 0405)
4C 8T @ 2.40 GHz |
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Qualcomm Snapdragon 8s Gen 3
8C 8T @ 3.00 GHz |
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Devices using this processor |
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| Valve Steam Deck (AMD Custom APU 0405) | Qualcomm Snapdragon 8s Gen 3 |
| Valve Steam Deck | Unknown |
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