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.
| Codename | Van Gogh (Custom) |
| Series | AMD Renoir (Ryzen 4000 APU) |
| 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 |
- Average benchmark values
Valve Steam Deck 1 TB OLED : AMD Radeon Steam Deck 8CU, 7.40", 0.6 kg
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