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Best Atomic Heart settings for the AMD RX 6400 (2026)

On a AMD RX 6400 (paired with a balanced Intel Core i5-8600K-class CPU), Atomic Heart runs at roughly 63 FPS at 1080p with our optimized settings — up from about 34FPS with everything maxed. Here's the configuration and what each setting costs.

The AMD RX 6400 is a entry-level graphics card with 4GB of VRAM, and Atomic Heart is a moderately demanding game. Paired with the Intel Core i5-8600K, it runs well at 1080p — about 63 FPS with FrameCoach's optimized settings, a clear jump from roughly 34 FPS with everything on High.

Across resolutions you can expect around 63 FPS at 1080p and 49 FPS at 1440p, dropping to roughly 28 FPS at 4K. The biggest free win is FSR upscaling — set it to Quality for a large FPS boost at little visual cost.

ResolutionAll-High FPSOptimized FPS
1080p3463
1440p2049
4K1228
🚀 Biggest free win: enable FSR (Balanced) — about +55% FPS for a small sharpness trade.
Recommended settings
Upscaling — FSRBalanced+55% FPS
Atomic Heart (Unreal Engine 4) supports DLSS and FSR. A free FPS boost on a well-optimised game.
Volumetric FogLow+7% FPS
Atmospheric fog and light shafts - a real cost. Medium keeps the mood for less.
ShadowsMedium+5% FPS
Shadow resolution and range. High is the value pick over Epic.
Ambient OcclusionMedium+3% FPS
Contact shadows and depth in the colourful Soviet facility. High is a clean trade.
MaterialsMedium+2% FPS
Surface shading realism on the facility's ornate surfaces. High is a clean, cheap trade.
Post ProcessingMedium+2% FPS
Reflections, bloom and colour grading. Cheap; set to taste.
TexturesUltra-1% FPS
Surface sharpness - cheap if it fits your VRAM. Ultra wants 12GB+.
Visual FXHighbaseline
Combat and ability effects. Lowering smooths the chaotic robot fights.
Number of ObjectsHighbaseline
Object and prop density in the scene - partly CPU-bound. High is a safe trim from Epic.

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

🎯 Can the AMD RX 6400 run Atomic Heart? See the verdict →

Atomic Heart on other GPUs
Other games on the AMD RX 6400
Frequently asked

What FPS does the AMD RX 6400 get in Atomic Heart?

With FrameCoach's optimized balanced settings, the AMD RX 6400 averages around 63 FPS at 1080p in Atomic Heart — up from about 34 FPS with everything on High.

Can the AMD RX 6400 run Atomic Heart at 1440p?

At 1440p with optimized settings, the AMD RX 6400 averages roughly 49 FPS in Atomic Heart; turn on upscaling or aim for a locked 60 for the best feel.

What are the best Atomic Heart settings for the AMD RX 6400?

Turn on FSR (Balanced), keep ray tracing off for maximum FPS, and ease the heaviest options like Volumetric Fog and Shadows 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.