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Best Subnautica 2 settings for the RTX 4080 Laptop (2026)

On a RTX 4080 Laptop (paired with a balanced AMD Ryzen 9 5950X-class CPU), Subnautica 2 runs at roughly 91 FPS at 1440p with our optimized settings — up from about 91FPS with everything maxed. Here's the configuration and what each setting costs.

The RTX 4080 Laptop is a strong 1440p graphics card with 12GB of VRAM, and Subnautica 2 is a moderately demanding game. Paired with the AMD Ryzen 9 5950X, it runs great at 1440p — about 91 FPS with 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 152 FPS at 1080p and 91 FPS at 1440p, dropping to roughly 70 FPS at 4K. The biggest free win is DLSS upscaling — set it to Quality for a large FPS boost at little visual cost.

ResolutionAll-High FPSOptimized FPS
1080p152152
1440p9191
4K5270
💡 Subnautica 2: Early-access Unreal Engine 5 - Lumen Global Illumination is the heaviest setting; upscaling helps a lot.
Recommended settings
Upscaling — DLSSOff
Subnautica 2 (Unity) supports Nvidia DLSS plus Frame Generation - there is currently no FSR for AMD/Intel. Enable it first for a big, low-cost FPS gain.
CloudsMediumbaseline
Volumetric clouds above the surface - can drain ~20 FPS at Epic. Medium is a big saving with little loss.
View / Detail DistanceHighbaseline
How far terrain and props render. Lower it a notch first if you dip in open water.
Shadow QualityHighbaseline
Shadow resolution and range. High is a strong step down from Epic.
Water & Caustics QualityMediumbaseline
The shimmering light patterns and water detail that define the look. Medium keeps the vibe while saving frames.
Flora / Foliage DensityMediumbaseline
Density of coral and plant life. Lower it for steadier FPS in dense reefs.
Effects QualityMediumbaseline
Particles, bubbles and volumetrics. Medium is plenty.
Texture QualityHighbaseline
Surface detail — cheap on FPS if it fits your VRAM.

⚡ Fine-tune this for your exact CPU & target FPS →

🎯 Can the RTX 4080 Laptop run Subnautica 2? See the verdict →

Subnautica 2 on other GPUs
Other games on the RTX 4080 Laptop
Frequently asked

What FPS does the RTX 4080 Laptop get in Subnautica 2?

With FrameCoach's optimized balanced settings, the RTX 4080 Laptop averages around 91 FPS at 1440p in Subnautica 2 — up from about 91 FPS with everything on High.

Can the RTX 4080 Laptop run Subnautica 2 at 1440p?

At 1440p with optimized settings, the RTX 4080 Laptop averages roughly 91 FPS in Subnautica 2 — a smooth experience.

What are the best Subnautica 2 settings for the RTX 4080 Laptop?

Use a balanced preset, keep ray tracing off for maximum FPS, and ease the heaviest options like Clouds 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.