AMD Ryzen 5 7645HX | Valve Steam Deck (AMD Custom APU 0405) | |
CPU comparisonIn this CPU comparison, we compare the AMD Ryzen 5 7645HX and the Valve Steam Deck (AMD Custom APU 0405) and use benchmarks to check which processor is faster.
We compare the AMD Ryzen 5 7645HX 6 core processor released in Q1/2023 with the Valve Steam Deck (AMD Custom APU 0405) which has 4 CPU cores and was introduced in Q4/2021. |
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AMD Ryzen 5 (85) | Family | AMD Ryzen 5 (85) |
AMD Ryzen 7045 (6) | CPU group | AMD Aerith (Steam Deck) (1) |
6 | Generation | 3 |
Dragon Range (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 5 7645HX is a 6 core processor with a clock frequency of 4.00 GHz (5.00 GHz). The processor can compute 12 threads at the same time. The Valve Steam Deck (AMD Custom APU 0405) clocks with 2.40 GHz (3.50 GHz), has 4 CPU cores and can calculate 8 threads in parallel. |
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AMD Ryzen 5 7645HX | Characteristic | Valve Steam Deck (AMD Custom APU 0405) |
6 | Cores | 4 |
12 | Threads | 8 |
normal | Core architecture | normal |
Yes | Hyperthreading | Yes |
Yes | Overclocking ? | No |
4.00 GHz | Frequency | 2.40 GHz |
5.00 GHz | Turbo Frequency (1 Core) | 3.50 GHz |
-- | Turbo Frequency (All Cores) | 2.80 GHz |
Internal GraphicsGraphics (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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AMD Radeon 610M | GPU | AMD Custom Radeon Graphics (Steam Deck) |
0.40 GHz | GPU frequency | 1.00 GHz |
2.20 GHz | GPU (Turbo) | 1.60 GHz |
9 | GPU Generation | -- |
6 nm | Technology | 7 nm |
3 | Max. displays | 2 |
2 | Compute units | 8 |
128 | Shader | 512 |
Yes | Hardware Raytracing | No |
No | Frame Generation | No |
8 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 610M | 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 / Encode | Codec VP9 | Decode / Encode |
Decode / Encode | Codec VP8 | Decode / Encode |
Decode | Codec AV1 | No |
Decode / Encode | Codec AVC | Decode / Encode |
Decode | Codec VC-1 | Decode |
Decode / Encode | Codec JPEG | Decode / Encode |
Memory & PCIeUp to 128 GB of memory in a maximum of 2 memory channels is supported by the AMD Ryzen 5 7645HX, while the Valve Steam Deck (AMD Custom APU 0405) supports a maximum of 16 GB of memory with a maximum memory bandwidth of 88.0 GB/s enabled. |
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AMD Ryzen 5 7645HX | Characteristic | Valve Steam Deck (AMD Custom APU 0405) |
DDR5-5200 | Memory | LPDDR5-5500 |
128 GB | Max. Memory | 16 GB |
2 (Dual Channel) | Memory channels | 4 (Quad Channel) |
83.2 GB/s | Max. Bandwidth | 88.0 GB/s |
Yes | ECC | No |
6.00 MB | L2 Cache | 2.00 MB |
32.00 MB | L3 Cache | 4.00 MB |
5.0 | PCIe version | 3.0 |
28 | PCIe lanes | 8 |
110.3 GB/s | PCIe Bandwidth | 7.9 GB/s |
Thermal ManagementThe AMD Ryzen 5 7645HX has a TDP of 55 W. The TDP of the Valve Steam Deck (AMD Custom APU 0405) is 15 W. System integrators use the TDP of the processor as a guide when dimensioning the cooling solution. |
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AMD Ryzen 5 7645HX | Characteristic | Valve Steam Deck (AMD Custom APU 0405) |
55 W | TDP (PL1 / PBP) | 15 W |
-- | TDP (PL2) | -- |
75 W | TDP up | -- |
45 W | TDP down | 4 W |
100 °C | Tjunction max. | 100 °C |
Technical detailsThe AMD Ryzen 5 7645HX has 38.00 MB cache and is manufactured in 5 nm. The cache of Valve Steam Deck (AMD Custom APU 0405) is at 6.00 MB. The processor is manufactured in 7 nm. |
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AMD Ryzen 5 7645HX | Characteristic | Valve Steam Deck (AMD Custom APU 0405) |
5 nm | Technology | 7 nm |
Chiplet | 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 |
FL1 | Socket | FF3 |
AMD-V, SVM | Virtualization | AMD-V, SVM |
Yes | AES-NI | Yes |
Windows 10, Windows 11, Linux | Operating systems | SteamOS (Arch Linux) |
Q1/2023 | Release date | Q4/2021 |
-- | Release price | -- |
show more data | show more data | |
AMD Ryzen 5 7645HX
6C 12T @ 5.00 GHz |
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Valve Steam Deck (AMD Custom APU 0405)
4C 8T @ 3.50 GHz |
AMD Ryzen 5 7645HX
6C 12T @ 4.00 GHz |
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Valve Steam Deck (AMD Custom APU 0405)
4C 8T @ 2.80 GHz |
AMD Ryzen 5 7645HX
AMD Radeon 610M @ 2.20 GHz |
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Valve Steam Deck (AMD Custom APU 0405)
AMD Custom Radeon Graphics (Steam Deck) @ 1.60 GHz |
AMD Ryzen 5 7645HX
6C 12T @ 5.00 GHz |
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Valve Steam Deck (AMD Custom APU 0405)
4C 8T @ 3.50 GHz |
AMD Ryzen 5 7645HX
6C 12T @ 5.00 GHz |
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Valve Steam Deck (AMD Custom APU 0405)
4C 8T @ 3.50 GHz |
AMD Ryzen 5 7645HX
6C 12T @ 5.00 GHz |
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Valve Steam Deck (AMD Custom APU 0405)
4C 8T @ 3.50 GHz |
AMD Ryzen 5 7645HX
6C 12T @ 4.00 GHz |
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Valve Steam Deck (AMD Custom APU 0405)
4C 8T @ 2.80 GHz |
AMD Ryzen 5 7645HX
6C 12T @ 5.00 GHz |
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Valve Steam Deck (AMD Custom APU 0405)
4C 8T @ 3.50 GHz |
AMD Ryzen 5 7645HX
6C 12T @ 4.00 GHz |
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Valve Steam Deck (AMD Custom APU 0405)
4C 8T @ 2.80 GHz |
AMD Ryzen 5 7645HX
13,824 CB R23 MC @ 51 W |
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Valve Steam Deck (AMD Custom APU 0405)
2.40 GHz |
Devices using this processor |
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AMD Ryzen 5 7645HX | Valve Steam Deck (AMD Custom APU 0405) |
Unknown | Valve Steam Deck |