AMD Ryzen Z1 Extreme vs Valve Steam Deck (AMD Custom APU 0405)
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CPU comparison with benchmarks
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| AMD Ryzen Z1 Extreme | Valve Steam Deck (AMD Custom APU 0405) | |
CPU comparisonAMD Ryzen Z1 Extreme 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 AMD Ryzen Z1 Extreme has 8 cores with 16 threads and clocks with a maximum frequency of 5.10 GHz. Up to 256 GB of memory is supported in 2 memory channels. The AMD Ryzen Z1 Extreme was released in Q2/2023. 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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| AMD Ryzen Z1 (2) | Family | AMD Ryzen 5 (84) |
| AMD Ryzen 7040 (21) | CPU group | AMD Aerith (Steam Deck) (1) |
| 6 | Generation | 3 |
| Phoenix (Zen 4) | Architecture | Aerith (Zen 2) |
| Mobile | Segment | Mobile |
| -- | Predecessor | -- |
| -- | Successor | Valve Steam Deck (2023 Refresh) |
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CPU Cores and Base FrequencyThe AMD Ryzen Z1 Extreme has 8 CPU cores and can calculate 16 threads in parallel. The clock frequency of the AMD Ryzen Z1 Extreme is 3.30 GHz (5.10 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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| AMD Ryzen Z1 Extreme | Characteristic | Valve Steam Deck (AMD Custom APU 0405) |
| 8 | Cores | 4 |
| 16 | Threads | 8 |
| normal | Core architecture | normal |
| Yes | Hyperthreading | Yes |
| No | Overclocking ? | No |
| 3.30 GHz | Frequency | 2.40 GHz |
| 5.10 GHz | Turbo Frequency (1 Core) | 3.50 GHz |
| -- | Turbo Frequency (All Cores) | 2.80 GHz |
Internal GraphicsThe AMD Ryzen Z1 Extreme 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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| AMD Radeon 780M | GPU | AMD Custom Radeon Graphics (Steam Deck) |
| 0.80 GHz | GPU frequency | 1.00 GHz |
| 2.70 GHz | GPU (Turbo) | 1.60 GHz |
| 3 | GPU Generation | -- |
| 4 nm | Technology | 7 nm |
| 4 | Max. displays | 2 |
| 12 | Compute units | 8 |
| 768 | Shader | 512 |
| Yes | Hardware Raytracing | No |
| AMD FSR | Frame Generation | No |
| 32 GB | Max. GPU Memory | 8 GB |
| 12 | 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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| AMD Radeon 780M | GPU | AMD Custom Radeon Graphics (Steam Deck) |
| 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 | Codec VP9 | Decode / Encode |
| Decode | Codec VP8 | Decode / Encode |
| Decode / Encode | Codec AV1 | No |
| Decode | Codec AVC | Decode / Encode |
| Decode | Codec VC-1 | Decode |
| Decode / Encode | Codec JPEG | Decode / Encode |
Memory & PCIeThe AMD Ryzen Z1 Extreme can use up to 256 GB of memory in 2 memory channels. The maximum memory bandwidth is 120.0 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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| AMD Ryzen Z1 Extreme | Characteristic | Valve Steam Deck (AMD Custom APU 0405) |
| DDR5-4800, DDR5-5600, LPDDR5-6400, LPDDR5X-7500 | Memory | LPDDR5-5500 |
| 256 GB | Max. Memory | 16 GB |
| 2 (Dual Channel) | Memory channels | 4 (Quad Channel) |
| 120.0 GB/s | Max. Bandwidth | 88.0 GB/s |
| Yes | ECC | No |
| 8.00 MB | L2 Cache | 2.00 MB |
| 16.00 MB | L3 Cache | 4.00 MB |
| 4.0 | PCIe version | 3.0 |
| 20 | PCIe lanes | 8 |
| 39.4 GB/s | PCIe Bandwidth | 7.9 GB/s |
Thermal ManagementThe thermal design power (TDP for short) of the AMD Ryzen Z1 Extreme is 28 W, 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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| AMD Ryzen Z1 Extreme | Characteristic | Valve Steam Deck (AMD Custom APU 0405) |
| 28 W | TDP (PL1 / PBP) | 15 W |
| -- | TDP (PL2) | -- |
| 30 W | TDP up | -- |
| 15 W | TDP down | 4 W |
| 100 °C | Tjunction max. | 100 °C |
Technical detailsThe AMD Ryzen Z1 Extreme is manufactured in 4 nm and has 24.00 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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| AMD Ryzen Z1 Extreme | Characteristic | Valve Steam Deck (AMD Custom APU 0405) |
| 4 nm | Technology | 7 nm |
| Monolithic | Chip design | Monolithic |
| x86-64 (64 bit) | Instruction set (ISA) | x86-64 (64 bit) |
| SSE4a, SSE4.1, SSE4.2,FMA3, AVX2, AVX512 | ISA extensions | SSE4a, SSE4.1, SSE4.2, AVX2, FMA3 |
| FP8 | Socket | FF3 |
| AMD-V, SVM | Virtualization | AMD-V, SVM |
| Yes | AES-NI | Yes |
| Windows 10, Windows 11, Linux | Operating systems | SteamOS (Arch Linux) |
| Q2/2023 | Release date | Q4/2021 |
| -- | Release price | -- |
| show more data | show more data | |
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4C 8T @ 2.40 GHz (3.50 GHz) buy now on Amazon and save!
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Rate these processors
Average performance in benchmarks
⌀ Single core performance in 3 CPU benchmarks
⌀ Multi core performance in 3 CPU benchmarks
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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AMD Ryzen Z1 Extreme
8C 16T @ 5.10 GHz |
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Valve Steam Deck (AMD Custom APU 0405)
4C 8T @ 3.50 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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AMD Ryzen Z1 Extreme
8C 16T @ 3.30 GHz |
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Valve Steam Deck (AMD Custom APU 0405)
4C 8T @ 2.80 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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AMD Ryzen Z1 Extreme
8C 16T @ 5.10 GHz |
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Valve Steam Deck (AMD Custom APU 0405)
4C 8T @ 3.50 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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AMD Ryzen Z1 Extreme
8C 16T @ 3.30 GHz |
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Valve Steam Deck (AMD Custom APU 0405)
4C 8T @ 2.80 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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AMD Ryzen Z1 Extreme
8C 16T @ 5.10 GHz |
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Valve Steam Deck (AMD Custom APU 0405)
4C 8T @ 3.50 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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AMD Ryzen Z1 Extreme
8C 16T @ 3.30 GHz |
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Valve Steam Deck (AMD Custom APU 0405)
4C 8T @ 2.80 GHz |
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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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AMD Ryzen Z1 Extreme
AMD Radeon 780M @ 2.70 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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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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AMD Ryzen Z1 Extreme
8C 16T @ 5.10 GHz |
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Valve Steam Deck (AMD Custom APU 0405)
4C 8T @ 3.50 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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AMD Ryzen Z1 Extreme
8C 16T @ 5.10 GHz |
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Valve Steam Deck (AMD Custom APU 0405)
4C 8T @ 3.50 GHz |
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Estimated results for PassMark CPU Mark
Some of the CPUs listed below have been benchmarked by CPU-monkey. However the majority of CPUs have not been tested and the results have been estimated by a CPU-monkey’s secret proprietary formula. As such they do not accurately reflect the actual Passmark CPU mark values and are not endorsed by PassMark Software Pty Ltd.
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AMD Ryzen Z1 Extreme
8C 16T @ 3.30 GHz |
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Valve Steam Deck (AMD Custom APU 0405)
4C 8T @ 2.80 GHz |
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Devices using this processor |
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| AMD Ryzen Z1 Extreme | Valve Steam Deck (AMD Custom APU 0405) |
| ASUS ROG Ally | Valve Steam Deck |
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