On a AMD RX 7800 XT (paired with a balanced Intel Core i9-12900F-class CPU), Subnautica 2 runs at roughly 97 FPS at 1440p with our optimized settings — up from about 97FPS with everything maxed. Here's the configuration and what each setting costs.
The AMD RX 7800 XT is a high-end graphics card with 16GB of VRAM, and Subnautica 2 is a moderately demanding game. Paired with the Intel Core i9-12900F, it runs great at 1440p — about 97 FPSwith FrameCoach's optimized settings. That already clears a smooth frame rate on High, so our tuning keeps the visuals as high as possible instead of chasing extra frames.
Across resolutions you can expect around 161 FPS at 1080p and 97 FPS at 1440p, dropping to roughly 74 FPS at 4K. Its 16GB of VRAM is plenty for Subnautica 2, so textures can stay maxed. 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 | 161 | 161 |
| 1440p | 97 | 97 |
| 4K | 55 | 74 |
⚡ Fine-tune this for your exact CPU & target FPS →
🎯 Can the AMD RX 7800 XT run Subnautica 2? See the verdict →
With FrameCoach's optimized balanced settings, the AMD RX 7800 XT averages around 97 FPS at 1440p in Subnautica 2 — up from about 97 FPS with everything on High.
At 1440p with optimized settings, the AMD RX 7800 XT averages roughly 97 FPS in Subnautica 2 — a smooth experience.
Use a balanced preset, 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.