CAVEAT — Runs with Limitations
Verified Compatibility Spec
Hardware Compatibility Test Report
Can Steam Deck OLED (Custom APU) run Baldur's Gate 3?
Playable 30 FPS in Acts 1 & 2; drops into low 20s in Act 3 Lower City.
Memory Overhead
14.2 GB unified memory
Active RAM / VRAM allocation
Thermal Profile
71°C fan profile (Quiet OLED cooling)
Package temp & dissipation
Power & Battery
~2.2 hours battery life
Sustained power requirements
01 // Empirical Benchmark Logs & Observations
- [—]FSR 2.2 on Quality or Balanced is mandatory to sustain 30 FPS in outdoor zones.
- [—]Act 3 NPC density bottlenecks the 4-core Zen 2 CPU architecture.
- [—]Capping framerate to 30Hz / 30 FPS gives the smoothest frame pacing.
Engineering Verdict
Great portable experience for turn-based combat during Acts 1 and 2, but prepare for stuttering in crowded city zones.
Recommended Hardware Alternative
SanDisk 1TB Extreme MicroSD Card
Fast A2 read speeds to minimize Baldur's Gate 3 zone loading screens.
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