The NVIDIA RTX 5090 is a flagship 4K-class card with 32GB of VRAM, and Subnautica 2 is a moderately demanding game. Paired with a balanced Intel Core i9-14900K-class CPU it averages about 116 FPS at 4K with FrameCoach's tuned settings — up from roughly 116 FPS with everything on High.
| Resolution | All-High FPS | Optimized FPS |
|---|---|---|
| 1080p | 263 | 263 |
| 1440p | 205 | 205 |
| 4K | 116 | 116 |
At 1080p expect around 263 FPS, at 1440p about 205 FPS, and at 4K roughly 116 FPS with optimized settings. Its 32GB of VRAM is plenty for Subnautica 2. Subnautica 2 doesn't use upscaling, so the gains come from trimming the heaviest settings.
🎛 See the full best-settings guide for Subnautica 2 on the NVIDIA RTX 5090 →
⚡ Check your exact CPU & target FPS in the optimizer →
Yes — easily. With FrameCoach's optimized balanced settings, the NVIDIA RTX 5090 averages about 116 FPS at 4K in Subnautica 2.
Around 263 FPS at 1080p with optimized settings (up from about 263 FPS on all-High).
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.