Rainbow Six SiegeFPS onCore i9-9900X&GeForce RTX 4090

Rainbow Six Siege

This tactical shooter uses the AnvilNext 2.0 engine and features procedural environmental destruction, which can be taxing on the CPU. The Vulkan API helps older hardware maintain performance by better utilizing available resources. Siege is sensitive to RAM speed and latency. The HD Texture Pack can push VRAM usage over 6GB, so cards with 8GB or more are recommended for the best visual experience at 1080p or 1440p.

Rainbow Six Siege - FPS Estimates by Resolution

Actual FPS may vary based on RAM speed, background processes, and other system factors

1080P
low443 FPS
medium381 FPS
high313 FPS
ultra268 FPS
1440P
low342 FPS
medium304 FPS
high276 FPS
ultra232 FPS
4K
low196 FPS
medium185 FPS
high159 FPS
ultra134 FPS

Performance Report

Rainbow Six Siege

GeForce RTX 4090 + Core i9-9900X
🎮Visual Experience

At 1080p, all quality settings exceed 268 FPS, suitable for 144Hz+ monitors. At 1440p, all settings exceed 232 FPS. At 4K, all settings exceed 134 FPS.

Official Requirements

The GeForce RTX 4090 is 611% above the recommended GPU (GeForce GTX 670) for Rainbow Six Siege. The Core i9-9900X is 228% above the recommended CPU (Core i5-2500K).

⚙️FPS Ceiling Analysis

The Core i9-9900X sets the FPS ceiling at all 1080p settings, all 1440p settings, all 4k settings, while the GeForce RTX 4090 still has headroom.

💰Value Analysis

Approximated average price on current market:

GeForce RTX 4090:$1649(updated 2/6/2026)
Official Launch Price: $1599
Core i9-9900X:$300(updated 2/10/2026)
Official Launch Price: $989

Combo price: $1949. At 1080p Ultra, this combo delivers 268 FPS, equivalent to 0.14 FPS per dollar.

ResolutionLowMediumHighUltra
1080p0.227 fps/$0.195 fps/$0.161 fps/$0.138 fps/$
1440p0.175 fps/$0.156 fps/$0.142 fps/$0.119 fps/$
4k0.101 fps/$0.095 fps/$0.082 fps/$0.069 fps/$

* Table values represent FPS per Dollar (higher is better)

Performance Limiter Analysis

Core i9-9900X|GeForce RTX 4090

This section is based on estimated CPU/GPU FPS ceilings, not utilization percentages.

📈Analysis

At 4k ultra, the Core i9-9900X sets the ceiling at about 133 FPS, while the GeForce RTX 4090 could reach 308 FPS. In this scenario, the CPU limits the GPU potential by 57% (FPS gap: 175 FPS). Overall distribution: CPU limits 12/12 cells, GPU limits 0/12, balanced 0/12.

Verdict

CPU Limits GPU

Your Core i9-9900X is the limiting side in the heaviest mismatch. This means part of the GeForce RTX 4090 rendering potential remains unused in those settings.

🧩Detailed Breakdown
1080p (Full HD)
LowCPU Limits GPU 38%
MediumCPU Limits GPU 38%
HighCPU Limits GPU 38%
UltraCPU Limits GPU 41%
1440p (2K QHD)
LowCPU Limits GPU 46%
MediumCPU Limits GPU 48%
HighCPU Limits GPU 46%
UltraCPU Limits GPU 48%
4K (Ultra HD)
LowCPU Limits GPU 54%
MediumCPU Limits GPU 52%
HighCPU Limits GPU 56%
UltraCPU Limits GPU 57%
Percentages show how much potential FPS of the stronger component is lost because the other component has a lower FPS ceiling.
🧠Methodology

We estimate the maximum FPS the processor can sustain and the maximum FPS the graphics card can sustain in each setting, then compare those limits directly.

Limit Factor formula: (stronger - weaker) / stronger. Example: if CPU ceiling is 200 FPS and GPU ceiling is 140 FPS, then GPU limits CPU by 30%.

CPU Limits GPU means the processor ceiling is lower. GPU Limits CPU means the graphics ceiling is lower. Balanced means the FPS ceilings are close enough that the gap is negligible.

A component can still be the FPS limiter without reaching 100% utilization. The displayed percentages are derived from FPS ceilings, not generic utilization heuristics.

📊Predicted Hardware Utilization for Core i9-9900X and GeForce RTX 4090

1080p (Full HD)

Low
CPU94% - 100%
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GPU23% - 37%
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Medium
CPU94% - 100%
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GPU23% - 37%
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High
CPU37% - 55%
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GPU77% - 80%
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Ultra
CPU37% - 55%
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GPU77% - 80%
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1440p (2K QHD)

Low
CPU92% - 93%
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GPU23% - 43%
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Medium
CPU92% - 93%
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GPU23% - 43%
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High
CPU19% - 56%
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GPU78% - 80%
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Ultra
CPU19% - 56%
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GPU78% - 80%
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4K (Ultra HD)

Low
CPU92% - 93%
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GPU23% - 43%
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Medium
CPU92% - 93%
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GPU23% - 43%
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High
CPU19% - 56%
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GPU78% - 80%
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Ultra
CPU19% - 56%
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GPU78% - 80%
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Performance Summary

The Core i9-9900X + GeForce RTX 4090 pairing runs this title with CPU utilization between 19% and 100% and GPU utilization between 23% and 80%. Core i9-9900X reaches high load in heavier scenarios, while GeForce RTX 4090 is utilized efficiently without persistent saturation. As resolution scales, average GPU load rises from 54% at 1080p to 56% at 4K, while CPU averages move from 72% to 65%.

Load Interpretation

From a utilization perspective, this is a CPU-heavy load profile. At 1080p (Full HD) Low, the Core i9-9900X reaches 97% average load (94-100%), while the GeForce RTX 4090 remains comparatively lower at 30% (23-37%). This points to heavier CPU-side frame preparation work, but utilization alone does not define the FPS limiter.

Resolution Scaling

At 1080p, averages sit around CPU 72% and GPU 54%. At 1440p, that shifts to CPU 65% and GPU 56%, and at 4K it reaches CPU 65% and GPU 56%. This shows that workload scaling is present on both components, with stronger pressure on the GPU.

Optimal Settings Recommendation

1440p (2K QHD) High is the most balanced preset based on this dataset. It runs around CPU 38% (19-56%) and GPU 79% (78-80%), which keeps GeForce RTX 4090 well utilized without constant max-out behavior while Core i9-9900X remains stable for consistent frame delivery.

Upgrade Insight

Upgrade priority should be the CPU. The Core i9-9900X reaches 97% average load at 1080p (Full HD) Low while the GeForce RTX 4090 remains comparatively underutilized, so a faster processor would improve frame-time consistency and top-end FPS.

Understanding Hardware Utilization: These percentages represent how much of your component's maximum processing power is actively being used during gameplay. They describe hardware load, but they do not directly tell you which component sets the FPS ceiling.

Important: a CPU or GPU can still be the FPS limiter without reaching 100% utilization. Two processors can both show 40% usage and still deliver very different frame rates, depending on per-core speed, cache, engine threading, driver overhead, and frame preparation efficiency.

  • High GPU Load: You typically want to see High GPU Utilization (90%+) and moderate CPU usage when visual settings are heavy. This indicates the graphics pipeline is under strong load, but the exact FPS limiter should still be confirmed by the FPS ceiling analysis.
  • High CPU Load: If you see High CPU Utilization (85%+) paired with lower GPU utilization, the processor is handling a disproportionate share of frame preparation and game logic. That can point to CPU-side pressure, but it should not be treated as a direct replacement for FPS ceiling analysis.
  • Low CPU and GPU Load: If both CPU and GPU utilization are relatively low, it means the hardware is waiting on something else. This could be a game engine limitation, poorly optimized code, or an artificial framerate cap like VSync holding performance back. It does not mean both parts are equally fast in FPS terms.

Data generated by our Machine Learning engine trained on real-world benchmarks. Shows the approximate average utilization at each setting.

Rainbow Six Siege Requirements Comparison

See how your processor and graphics card compare against the game official minimum and recommended system specs. The placement of your hardware is calculated using relative synthetic performance scores to help you gauge overall playability.

CPU - Core i9-9900X
cpu icon
21,655
Your Score
MinimumCore i3-560
RecommendedCore i5-2500K
GPU - GeForce RTX 4090
gpu icon
38,112
Your Score
MinimumGeForce GTX 460
RecommendedGeForce GTX 670

Your CPU is 228% above and your GPU is 611% above the recommended specs. Ultra settings at 1080p, or High at 1440p/4K.

CPU

+228%vsrecommended

GPU

+611%vsrecommended

CPU

+858%vsminimum

GPU

+1575%vsminimum

Minimum Requirements
Video Card: GeForce GTX 460
Processor: Core i3-560
Memory: 6 GB
Disk Space: 61 GB
System: Windows 10 64-bit
Recommended Requirements
Video Card: GeForce GTX 670
Processor: Core i5-2500K
Memory: 8 GB
Disk Space: 61 GB (SSD)
System: Windows 10 64-bit

Frequently Asked Questions

1Can the Core i9-9900X and GeForce RTX 4090 run Rainbow Six Siege well?

Yes, the Core i9-9900X paired with the GeForce RTX 4090 can run Rainbow Six Siege smoothly up to 4k achieving around 134 FPS at Ultra quality. Your GPU is 611% above the recommended specs, and your CPU is 228% above the recommended requirements.

2Is there a more cost-effective setup to run Rainbow Six Siege?

This CPU + GPU combo costs approximately $1949 ($300 CPU (Rank #273 Value) + $1649 GPU (Rank #77 Value)). Since the CPU is the main limiting factor, investing in a stronger processor will improve your framerates and overall value. For example, the Ryzen 9 9950X is a great upgrade option for around $649 (Rank #5 for value).

3Which component should I upgrade first to improve Rainbow Six Siege performance?

For Rainbow Six Siege, upgrading the CPU would have the biggest impact on performance. The Core i9-9900X is currently the limiting factor — the GeForce RTX 4090 has extra headroom that a faster processor could take advantage of. This is especially noticeable at 1080p where CPU performance matters more. CPU-limited at: 1080p low, 1080p medium, 1080p high, 1080p ultra, 1440p low, 1440p medium, 1440p high, 1440p ultra, 4k low, 4k medium, 4k high, 4k ultra.

4Does this setup support Frame Generation for Rainbow Six Siege?

Rainbow Six Siege does not currently support Frame Generation technologies like DLSS 3 or FSR 3. Your performance is based entirely on native rendering. If the game adds support in a future update, newer GPUs will benefit the most.

5What are the minimum and recommended specs for Rainbow Six Siege?

Rainbow Six Siege requires at minimum a Core i3-560 (CPU) and GeForce GTX 460 (GPU) with 6 GB RAM and 61 GB storage. For the recommended experience, you need a Core i5-2500K and GeForce GTX 670 with 8 GB RAM. Your Core i9-9900X and GeForce RTX 4090 both exceed the recommended specs, so you're well-positioned for a great experience.

6How accurate are these Rainbow Six Siege FPS estimates for the Core i9-9900X and GeForce RTX 4090?

These Rainbow Six Siege FPS results are not arbitrary numbers. They come from calculations informed by thousands of real gaming benchmarks, and the typical accuracy range is around 10% to 15%. That makes them far more useful than generic FPS calculators that simply invent values without a benchmark foundation. Actual in-game performance can still vary with drivers, updates, RAM configuration, cooling, and the exact scene being rendered.

Performance estimates are based on synthetic benchmarks and hardware capabilities.

Results may vary based on drivers, OS, and background processes.