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 171 FPS, suitable for 144Hz+ monitors. At 1440p, all settings exceed 129 FPS. At 4K, all settings exceed 85 FPS.
The GeForce RTX 4090 is 244% above the recommended GPU (GeForce GTX 980) for Rust. The Ryzen 7 7800X3D is 180% above the recommended CPU (Core i7-4790K).
No significant bottleneck detected. The GeForce RTX 4090 and Ryzen 7 7800X3D operate in balance across all tested resolutions and quality settings.
Approximated average price on current market:
Combo price: $2033. At 1080p Ultra, this combo delivers 171 FPS, equivalent to 0.08 FPS per dollar.
| Resolution | Low | Medium | High | Ultra |
|---|---|---|---|---|
| 1080p | 0.122 fps/$ | 0.120 fps/$ | 0.096 fps/$ | 0.084 fps/$ |
| 1440p | 0.111 fps/$ | 0.105 fps/$ | 0.077 fps/$ | 0.063 fps/$ |
| 4k | 0.071 fps/$ | 0.064 fps/$ | 0.052 fps/$ | 0.042 fps/$ |
* Table values represent FPS per Dollar (higher is better)
This CPU/GPU pair is mostly balanced in Rust. Across tested presets: GPU limits in 0/12, CPU limits in 0/12, and balanced in 12/12. Peak observed performance in the sampled cells is around 249 FPS.
The Ryzen 7 7800X3D 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) | Balanced | Balanced | Balanced | Balanced |
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.
The displayed percentages are derived from FPS ceilings, not generic utilization heuristics.
| Resolution | Low | Medium | High | Ultra |
|---|---|---|---|---|
| 1080p (Full HD) | CPU11% - 32% <> GPU64% - 67% <> | CPU13% - 32% <> GPU63% - 67% <> | CPU11% - 31% <> GPU48% - 78% <> | CPU19% - 48% <> GPU46% - 77% <> |
| 1440p (2K QHD) | CPU11% - 32% <> GPU64% - 67% <> | CPU13% - 32% <> GPU63% - 67% <> | CPU11% - 32% <> GPU48% - 77% <> | CPU19% - 48% <> GPU46% - 76% <> |
| 4K (Ultra HD) | CPU10% - 32% <> GPU86% - 91% <> | CPU11% - 32% <> GPU86% - 90% <> | CPU10% - 32% <> GPU82% - 98% <> | CPU14% - 43% <> GPU82% - 98% <> |
The Ryzen 7 7800X3D + GeForce RTX 4090 pairing runs this title with CPU utilization between 10% and 48% and GPU utilization between 46% and 98%. Ryzen 7 7800X3D keeps significant headroom across presets, while GeForce RTX 4090 becomes the primary limiter at high visual load. As resolution scales, average GPU load rises from 64% at 1080p to 89% at 4K, while CPU averages move from 25% to 23%.
This profile is GPU-bound. At 4K (Ultra HD) High, the GeForce RTX 4090 averages 90% usage (82-98%), while the Ryzen 7 7800X3D stays at 21% (10-32%), indicating the graphics pipeline is the limiting stage.
At 1080p, averages sit around CPU 25% and GPU 64%. At 1440p, that shifts to CPU 25% and GPU 64%, and at 4K it reaches CPU 23% and GPU 89%. This shows that GPU demand scales sharply with resolution while CPU load remains comparatively stable.
4K (Ultra HD) Low is the most balanced preset based on this dataset. It runs around CPU 21% (10-32%) and GPU 88% (86-91%), which keeps GeForce RTX 4090 well utilized without constant max-out behavior while Ryzen 7 7800X3D remains stable for consistent frame delivery.
Current utilization does not show an urgent upgrade requirement for either component; the Ryzen 7 7800X3D and GeForce RTX 4090 remain reasonably matched for this title.
Understanding Hardware Utilization & Bottlenecks: These percentages represent how much of your component's maximum processing power is actively being used during gameplay. This is the key to identifying performance bottlenecks in any system.
Data generated by our Machine Learning engine trained on real-world benchmarks. Shows the approximate average utilization at each setting.
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 180% above and your GPU is 244% above the recommended specs. Ultra settings at 1080p, or High at 1440p/4K.
+180%vsrecommended
+244%vsrecommended
+236%vsminimum
+589%vsminimum
Yes, the Ryzen 7 7800X3D paired with the GeForce RTX 4090 can run Rust smoothly up to 4k achieving around 85 FPS at Ultra quality. Your GPU is 244% above the recommended specs, and your CPU is 180% above the recommended requirements.
This CPU + GPU combo costs approximately $2033 ($384 CPU (Rank #212 Value) + $1649 GPU (Rank #77 Value)). This is a well-balanced setup, meaning you're getting good value from both components without significant waste.
This setup is already well-balanced for Rust. No significant bottleneck - CPU and GPU are well matched across all settings. Both the Ryzen 7 7800X3D and GeForce RTX 4090 complement each other effectively, so upgrading either component individually would yield diminishing returns. If you want more FPS, you'd benefit most from upgrading both CPU and GPU together.
Rust 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.
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 Ryzen 7 7800X3D 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.
