On a AMD RX 580 (4GB) (paired with a balanced Intel Core i5-8600K-class CPU), Subnautica 2 runs at roughly 69 FPS at 1080p with our optimized settings — up from about 38FPS with everything maxed. Here's the configuration and what each setting costs.
The AMD RX 580 (4GB) is a entry-level graphics card with 4GB of VRAM, and Subnautica 2 is a moderately demanding game. Paired with the Intel Core i5-8600K, it runs well at 1080p — about 69 FPSwith FrameCoach's optimized settings, a clear jump from roughly 38 FPS with everything on High.
Across resolutions you can expect around 69 FPS at 1080p and 61 FPS at 1440p, dropping to roughly 35 FPS at 4K. The biggest free win is FSR upscaling — set it to Quality for a large FPS boost at little visual cost.
| Resolution | All-High FPS | Optimized FPS |
|---|---|---|
| 1080p | 38 | 69 |
| 1440p | 23 | 61 |
| 4K | 13 | 35 |
⚡ Fine-tune this for your exact CPU & target FPS →
🎯 Can the AMD RX 580 (4GB) run Subnautica 2? See the verdict →
With FrameCoach's optimized balanced settings, the AMD RX 580 (4GB) averages around 69 FPS at 1080p in Subnautica 2 — up from about 38 FPS with everything on High.
At 1440p with optimized settings, the AMD RX 580 (4GB) averages roughly 61 FPS in Subnautica 2 — a smooth experience.
Turn on FSR (Balanced), keep ray tracing off for maximum FPS, and ease the heaviest options like Global Illumination (Lumen) and View / Detail Distance down a notch. The full per-setting breakdown is above.
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.