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Best Rainbow Six Siege settings for the NVIDIA RTX 4090 (2026)

On a NVIDIA RTX 4090 (paired with a balanced Intel Core i9-14900K-class CPU), Rainbow Six Siege runs at roughly 227 FPS at 4K with our optimized settings — up from about 230FPS with everything maxed. Here's the configuration and what each setting costs.

The NVIDIA RTX 4090 is a flagship 4K-class graphics card with 24GB of VRAM, and Rainbow Six Siege is a lightweight, high-frame-rate esports title. Paired with the Intel Core i9-14900K, it flies at 4K — about 227 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 332 FPS at 1080p and 332 FPS at 1440p, dropping to roughly 227 FPS at 4K. Its 24GB of VRAM is plenty for Rainbow Six Siege, so textures can stay maxed. The biggest free win is DLSS upscaling — set it to Quality for a large FPS boost at little visual cost.

ResolutionAll-High FPSOptimized FPS
1080p332332
1440p332332
4K230227
Recommended settings
Upscaling — DLSSOff
Siege supports DLSS and FSR. The game is extremely well optimized, so this mostly helps at 1440p/4K or on weaker GPUs.
Texture QualityUltra-1% FPS
Surface sharpness — cheap if it fits your VRAM.
Shadow QualityHighbaseline
The main GPU cost. Note: shadows carry information in Siege, so many players keep at least Medium.
Reflection QualityHighbaseline
Surface reflections. Cheap to lower with little gameplay impact.
Ambient OcclusionHBAO+baseline
Contact shadows. SSBC is a cheaper alternative to HBAO+.
Shading QualityHighbaseline
Surface shading detail. Modest cost; safe to lower for frames.
Level of DetailHighbaseline
World geometry detail and draw distance.
Anti-AliasingTAAbaseline
Edge smoothing. TAA is cheap and clean; FXAA is even lighter.
Texture Filtering16xbaseline
Keeps long hallways sharp — effectively free, use 16x.
Lens EffectsOnbaseline
Lens flares and bloom. Nearly free; pure preference.
Zoom-in Depth of FieldOnbaseline
Background blur while aiming down sights. Cheap; many disable it for clarity.
Multisample Anti-Aliasing2xbaseline
Hardware edge smoothing - heavy at higher steps. Off or 2x for high FPS.

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

🎯 Can the NVIDIA RTX 4090 run Rainbow Six Siege? See the verdict →

Rainbow Six Siege on other GPUs
Other games on the NVIDIA RTX 4090
Frequently asked

What FPS does the NVIDIA RTX 4090 get in Rainbow Six Siege?

With FrameCoach's optimized balanced settings, the NVIDIA RTX 4090 averages around 227 FPS at 4K in Rainbow Six Siege — up from about 230 FPS with everything on High.

Can the NVIDIA RTX 4090 run Rainbow Six Siege at 1440p?

At 1440p with optimized settings, the NVIDIA RTX 4090 averages roughly 332 FPS in Rainbow Six Siege — a smooth experience.

What are the best Rainbow Six Siege settings for the NVIDIA RTX 4090?

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