A true test for system memory. Procedural maps can exhaust RAM quickly; 16GB is the minimum, and 32GB is recommended. CPUs with 3D V-Cache (AMD X3D) offer massive performance gains here.
Actual FPS may vary based on RAM speed, background processes, and other system factors
Performance Report
At 1080p, all quality settings exceed 155 FPS, suitable for 144Hz+ monitors. At 1440p, all settings exceed 126 FPS. At 4K, all settings exceed 72 FPS.
The GeForce RTX 4090 is 244% above the recommended GPU (GeForce GTX 980) for Rust. The Core i9-11900F is 80% above the recommended CPU (Core i7-4790K).
Rust supports: AFMF. This game does not have native DLSS 3 or FSR 3 Frame Generation support. AFMF is AMD-exclusive and not compatible with GeForce RTX 4090.
The Core i9-11900F sets the FPS ceiling at all 4k settings, while the GeForce RTX 4090 still has headroom. The FPS ceiling is closely matched at all 1080p settings, all 1440p settings.
Approximated average price on current market:
Combo price: $2007.87. At 1080p Ultra, this combo delivers 155 FPS, equivalent to 0.08 FPS per dollar.
| Resolution | Low | Medium | High | Ultra |
|---|---|---|---|---|
| 1080p | 0.119 fps/$ | 0.110 fps/$ | 0.089 fps/$ | 0.077 fps/$ |
| 1440p | 0.114 fps/$ | 0.105 fps/$ | 0.077 fps/$ | 0.063 fps/$ |
| 4k | 0.067 fps/$ | 0.057 fps/$ | 0.047 fps/$ | 0.036 fps/$ |
* Table values represent FPS per Dollar (higher is better)
This section is based on estimated CPU/GPU FPS ceilings, not utilization percentages.
At 4k ultra, the Core i9-11900F sets the ceiling at about 71 FPS, while the GeForce RTX 4090 could reach 84 FPS. In this scenario, the CPU limits the GPU potential by 15% (FPS gap: 13 FPS). Overall distribution: CPU limits 4/12 cells, GPU limits 0/12, balanced 8/12.
The Core i9-11900F and GeForce RTX 4090 stay close in effective frame-generation ceiling across most presets, so neither side consistently suppresses the other by a large margin.
| Resolution | Low | Medium | High | Ultra |
|---|---|---|---|---|
| 1080p (Full HD) | Balanced | Balanced | Balanced | Balanced |
| 1440p (2K QHD) | Balanced | Balanced | Balanced | Balanced |
| 4K (Ultra HD) | CPU Limits GPU 7% | CPU Limits GPU 13% | CPU Limits GPU 10% | CPU Limits GPU 15% |
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 80% above and your GPU is 244% above the recommended specs. Ultra settings at 1080p, or High at 1440p/4K.
+80%vsrecommended
+244%vsrecommended
+116%vsminimum
+589%vsminimum
Yes, the Core i9-11900F paired with the GeForce RTX 4090 can run Rust smoothly up to 4k achieving around 72 FPS at Ultra quality. Your GPU is 244% above the recommended specs, and your CPU is 80% above the recommended requirements.
This CPU + GPU combo costs approximately $2007.87 ($358.87 CPU (Rank #308 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).
For Rust, upgrading the CPU would have the biggest impact on performance. The Core i9-11900F 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: 4k high, 4k low, 4k medium, 4k ultra.
Rust currently only supports AFMF (AMD Fluid Motion Frames) for frame generation, which is an AMD-exclusive technology. Because you are using an NVIDIA GPU, you cannot use Frame Generation for this specific game. However, the game does support DLSS Upscaling and FSR Upscaling, which you should enable to render at a lower resolution and use AI to significantly boost your FPS without losing visual quality.
Rust requires at minimum a Core i7-3770 (CPU) and GeForce GTX 670 (GPU) with 10 GB RAM and 25 GB (SSD) storage. For the recommended experience, you need a Core i7-4790K and GeForce GTX 980 with 16 GB RAM. Your Core i9-11900F and GeForce RTX 4090 both exceed the recommended specs, so you're well-positioned for a great experience.
These Rust 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.
