The AMD Custom APU 0405 is a 6nm chip in the Steam Deck OLED gaming console. The CPU is called “6 nm AMD APU” by Valve and offers four Zen 2 cores which are clocked from 2.4 – 3.6 GHz.
The CPU performance is similar to the older AMD Ryzen 3 4300U with also four Zen 2 cores (no SMT) but slightly higher clock rates (2.7 – 3.7 GHz) and usually better cooling. Compared to the LCD version, which is still manufactured in 7nm, the performance hardly changes.
The integrated GPU uses the modern RDNA 2 architecture with 8 CUs, which sits between a Radeon 660M and 680M, so to speak.
The chip is manufactured at TSMC in the N6 process (6nm) and is specified with a TDP of 15 watts. In software, the APU can also be reduced to up to 4 watts for significantly longer battery life.
| Series | AMD Renoir (Ryzen 4000 APU) |
| Codename | Van Gogh (Custom) |
| Clock Rate | 2400 – 3500 MHz |
| Level 1 Cache | 256 KB |
| Level 2 Cache | 2 MB |
| Level 3 Cache | 4 MB |
| Number of Cores / Threads | 4 / 8 4 x 3.6 GHz AMD Zen 2 |
| Power Consumption (TDP = Thermal Design Power) | 15 Watt |
| Manufacturing Technology | 6 nm |
| Features | DDR4-3200/LPDDR4-4266 RAM, PCIe 3, MMX, SSE, SSE2, SSE3, SSSE3, SSE4A, SSE4.1, SSE4.2, AVX, AVX2, BMI2, ABM, FMA, ADX, SMEP, SMAP, CPB, AES-NI, RDRAND, RDSEED, SHA, SME |
| GPU | AMD Radeon Steam Deck 8CU (1000 – 1600 MHz) |
| 64 Bit | 64 Bit support |
| Architecture | x86 |
| Announcement Date | 11/09/2023 |
| Product Link (external) | www.amd.com |
Benchmarks
Cinebench R23 – Cinebench R23 Multi Core
3984 Points (4%)
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Cinebench R20 – Cinebench R20 CPU (Single Core)
357 Points (40%)
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Cinebench R20 – Cinebench R20 CPU (Multi Core)
1521 Points (4%)
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Cinebench R15 – Cinebench R15 CPU Multi 64 Bit
689 Points (4%)
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max:
7-Zip 18.03 – 7-Zip 18.03 Multli Thread 4 runs
19684 MIPS (11%)
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7-Zip 18.03 – 7-Zip 18.03 Single Thread 4 runs
3653 MIPS (44%)
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Geekbench 6.2 – Geekbench 6.2 Single-Core
1348 points (41%)
unknown
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Geekbench 6.2 – Geekbench 6.2 Multi-Core
4587 points (18%)
unknown
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Geekbench 5.5 – Geekbench 5.1 – 5.4 64 Bit Single-Core
1486 points (63%)
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Geekbench 5.5 – Geekbench 5.1 – 5.4 64 Bit Multi-Core
4457 points (8%)
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WebXPRT 4 – WebXPRT 4 Score
107 Points (31%)
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unknown
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CrossMark – CrossMark Overall
840 Points (32%)
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unknown
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max:
Power Consumption – Prime95 Power Consumption – external Monitor *
26.1 Watt (5%)
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max:
Power Consumption – Idle Power Consumption – external Monitor *
6.5 Watt (5%)
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– Range of benchmark values for this graphics card
– Average benchmark values for this graphics card
* Smaller numbers mean a higher performance
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Other CPUs of the series Renoir (Ryzen 4000 APU)
Surrounding CPUs
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