Rainbow Six Siege FPS on Core i5-9400T + GeForce RTX 5090

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
low139 FPS
medium103 FPS
high68 FPS
ultra51 FPS
1440P
low83 FPS
medium61 FPS
high42 FPS
ultra31 FPS
4K
low45 FPS
medium35 FPS
high20 FPS
ultra13 FPS

Performance Report

Rainbow Six Siege

GeForce RTX 5090 + Core i5-9400T
🎮Visual Experience

At 1080p, frame rates range from 51 to 139 FPS depending on quality settings. At 1440p, frame rates range from 31 to 83 FPS. At 4K, frame rates range from 13 to 45 FPS.

Official Requirements

The GeForce RTX 5090 is 625% above the recommended GPU (GeForce GTX 670) for Rainbow Six Siege. The Core i5-9400T is 24% above the recommended CPU (Core i5-2500K).

⚙️FPS Ceiling Analysis

The Core i5-9400T sets the FPS ceiling at all 1080p settings, all 1440p settings, all 4k settings, while the GeForce RTX 5090 still has headroom.

💰Value Analysis

Approximated average price on current market:

GeForce RTX 5090:$2700
Official Launch Price: $1999
Core i5-9400T:$60
Official Launch Price: $182

Combo price: $2760. At 1080p Ultra, this combo delivers 51 FPS, equivalent to 0.02 FPS per dollar.

ResolutionLowMediumHighUltra
1080p0.050 fps/$0.037 fps/$0.025 fps/$0.018 fps/$
1440p0.030 fps/$0.022 fps/$0.015 fps/$0.011 fps/$
4k0.016 fps/$0.013 fps/$0.007 fps/$0.005 fps/$

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

Performance Limiter Analysis

Core i5-9400T|GeForce RTX 5090

This section is based on estimated CPU/GPU FPS ceilings, not utilization percentages. Adjacent heavier settings are lightly stabilized to remove prediction jitter that would otherwise create impossible reversals.

📈Analysis

At 1080p low, the Core i5-9400T sets the ceiling at about 139 FPS, while the GeForce RTX 5090 could reach 874 FPS. In this scenario, the CPU limits the GPU potential by 84% (FPS gap: 735 FPS). Overall distribution: CPU limits 12/12 cells, GPU limits 0/12, balanced 0/12.

Verdict

CPU Limits GPU

Your Core i5-9400T is the limiting side in the heaviest mismatch. This means part of the GeForce RTX 5090 rendering potential remains unused in those settings.

🧩Detailed Breakdown
1080p (Full HD)
LowCPU Limits GPU 84%
MediumCPU Limits GPU 84%
HighCPU Limits GPU 84%
UltraCPU Limits GPU 84%
1440p (2K QHD)
LowCPU Limits GPU 84%
MediumCPU Limits GPU 84%
HighCPU Limits GPU 84%
UltraCPU Limits GPU 84%
4K (Ultra HD)
LowCPU Limits GPU 84%
MediumCPU Limits GPU 84%
HighCPU Limits GPU 84%
UltraCPU Limits GPU 84%
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 and then monotonic-smoothed across heavier presets and resolutions, not generic utilization heuristics.

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 i5-9400T
cpu icon
8,180
Your Score
MinimumCore i3-560
RecommendedCore i5-2500K
GPU - GeForce RTX 5090
gpu icon
38,867
Your Score
MinimumGeForce GTX 460
RecommendedGeForce GTX 670

Your CPU is 24% above and your GPU is 625% above the recommended specs. High/Ultra at 1080p. Lower settings for higher resolutions.

CPU

+24%vsrecommended

GPU

+625%vsrecommended

CPU

+262%vsminimum

GPU

+1608%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 i5-9400T and GeForce RTX 5090 run Rainbow Six Siege well?

The Core i5-9400T and GeForce RTX 5090 will struggle to run Rainbow Six Siege at smooth framerates. At 1080p Ultra, you can expect around 51 FPS which is classified as "playable". Consider lowering settings or upgrading your hardware.

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

This CPU + GPU combo costs approximately $2760 ($60 CPU + $2700 GPU). 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 #4 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 i5-9400T is currently the limiting factor — the GeForce RTX 5090 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 i5-9400T and GeForce RTX 5090 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 i5-9400T and GeForce RTX 5090?

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.