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.
Actual FPS may vary based on RAM speed, background processes, and other system factors
Performance Report
At 1080p, frame rates range from 36 to 60 FPS depending on quality settings. At 1440p, frame rates range from 25 to 48 FPS. At 4K, frame rates range from 10 to 19 FPS.
The GeForce RTX 4090 is 611% above the recommended GPU (GeForce GTX 670) for Rainbow Six Siege. The Xeon X5450 is 63% below recommended, but 7% above minimum.
At lower resolutions (1080p (low/medium/high), 1440p low), the Xeon X5450 sets the FPS ceiling. As graphical load increases at (1440p (high/ultra), all 4k settings), the GeForce RTX 4090 becomes the FPS-limiting side. The FPS ceiling is closely matched at 1080p ultra, 1440p medium.
This section is based on estimated CPU/GPU FPS ceilings, not utilization percentages.
At 4k ultra, the GeForce RTX 4090 sets the ceiling at about 16 FPS, while the Xeon X5450 has headroom up to 60 FPS. In this scenario, the GPU limits the CPU potential by 73% (FPS gap: 44 FPS). Overall distribution: GPU limits 6/12 cells, CPU limits 4/12, balanced 2/12.
Your GeForce RTX 4090 is the limiting side in the heaviest mismatch. This means part of the Xeon X5450 frame-generation potential remains unused in those settings.
| Resolution | Low | Medium | High | Ultra |
|---|---|---|---|---|
| 1080p (Full HD) | CPU Limits GPU 47% | CPU Limits GPU 33% | CPU Limits GPU 24% | Balanced |
| 1440p (2K QHD) | CPU Limits GPU 13% | Balanced | GPU Limits CPU 22% | GPU Limits CPU 42% |
| 4K (Ultra HD) | GPU Limits CPU 48% | GPU Limits CPU 62% | GPU Limits CPU 68% | GPU Limits CPU 73% |
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.
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.
Your CPU is 63% below recommended and your GPU is 611% below recommended, but both meet minimum specs. Playable at Low/Medium settings, 1080p or below.
-63%vsrecommended
+611%vsrecommended
+7%vsminimum
+1575%vsminimum
The Xeon X5450 and GeForce RTX 4090 will struggle to run Rainbow Six Siege at smooth framerates. At 1080p Ultra, you can expect around 36 FPS which is classified as "playable". Consider lowering settings or upgrading your hardware.
Price data is not currently available for this combination. In general, look for setups where the CPU and GPU are balanced — this ensures you're not overspending on one component that the other can't keep up with.
Your GeForce RTX 4090 is already a top-tier graphics card. While it's technically the limiting factor here (which means you are fully utilizing your GPU's visual horsepower exactly as intended), there is no meaningful upgrade path that would drastically improve your Rainbow Six Siege performance right now. GPU fully utilized at: 1440p high, 1440p ultra, 4k low, 4k medium, 4k high, 4k ultra. CPU-limited at: 1080p low, 1080p medium, 1080p high, 1440p low.
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.
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 setup meets the minimum requirements but falls short of the recommended specs. You may need to lower some settings for smooth performance.
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.
