The Steam Deck (RDNA2 iGPU) is a handheld card with 4GB of VRAM, and Cities: Skylines II is a demanding, graphically heavy game. Paired with a balanced Intel Core i5-8600K-class CPU it averages about 61 FPS at 1080p with FrameCoach's tuned settings — up from roughly 26 FPS with everything on High.
| Resolution | All-High FPS | Optimized FPS |
|---|---|---|
| 1080p | 26 | 61 |
| 1440p | 15 | 37 |
| 4K | 9 | 21 |
At 1080p expect around 61 FPS, at 1440p about 37 FPS, and at 4K roughly 21 FPS with optimized settings. The single biggest improvement is FSR upscaling — set it to Quality.
🎛 See the full best-settings guide for Cities: Skylines II on the Steam Deck (RDNA2 iGPU) →
⚡ Check your exact CPU & target FPS in the optimizer →
Yes. With FrameCoach's optimized balanced settings, the Steam Deck (RDNA2 iGPU) averages about 61 FPS at 1080p in Cities: Skylines II.
Around 61 FPS at 1080p with optimized settings (up from about 26 FPS on all-High).
Turn on FSR (Balanced) for the biggest free boost, keep ray tracing off, and lower the heaviest settings a notch. FrameCoach's full per-setting guide for this exact combo shows what each option costs.
FPS figures are estimates from a generalized model (hardware tier × game load × per-setting weights), not live benchmarks — real performance varies by scene, drivers and game version.