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 90 FPS. At 1440p, all settings exceed 64 FPS. At 4K, frame rates range from 24 to 54 FPS.
The GeForce RTX 4090 is 244% above the recommended GPU (GeForce GTX 980) for Rust. The Core i5-10400T is 4% below minimum CPU requirement.
The Core i5-10400T sets the FPS ceiling at all 1080p settings, all 1440p settings, all 4k settings, while the GeForce RTX 4090 still has headroom.
Approximated average price on current market:
Combo price: $1749. At 1080p Ultra, this combo delivers 90 FPS, equivalent to 0.05 FPS per dollar.
| Resolution | Low | Medium | High | Ultra |
|---|---|---|---|---|
| 1080p | 0.092 fps/$ | 0.081 fps/$ | 0.064 fps/$ | 0.051 fps/$ |
| 1440p | 0.073 fps/$ | 0.061 fps/$ | 0.045 fps/$ | 0.037 fps/$ |
| 4k | 0.031 fps/$ | 0.025 fps/$ | 0.020 fps/$ | 0.014 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 i5-10400T sets the ceiling at about 24 FPS, while the GeForce RTX 4090 could reach 84 FPS. In this scenario, the CPU limits the GPU potential by 71% (FPS gap: 60 FPS). Overall distribution: CPU limits 12/12 cells, GPU limits 0/12, balanced 0/12.
Your Core i5-10400T is the limiting side in the heaviest mismatch. This means part of the GeForce RTX 4090 rendering potential remains unused in those settings.
| Resolution | Low | Medium | High | Ultra |
|---|---|---|---|---|
| 1080p (Full HD) | CPU Limits GPU 39% | CPU Limits GPU 41% | CPU Limits GPU 42% | CPU Limits GPU 45% |
| 1440p (2K QHD) | CPU Limits GPU 46% | CPU Limits GPU 51% | CPU Limits GPU 50% | CPU Limits GPU 49% |
| 4K (Ultra HD) | CPU Limits GPU 63% | CPU Limits GPU 68% | CPU Limits GPU 67% | CPU Limits GPU 71% |
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.
| Resolution | Low | Medium | High | Ultra |
|---|---|---|---|---|
| 1080p (Full HD) | CPU42% - 56% <> GPU58% - 65% <> | CPU45% - 57% <> GPU64% - 71% <> | CPU43% - 56% <> GPU80% - 81% <> | CPU38% - 52% <> GPU79% - 81% <> |
| 1440p (2K QHD) | CPU42% - 56% <> GPU59% - 65% <> | CPU45% - 57% <> GPU65% - 71% <> | CPU43% - 56% <> GPU81% - 82% <> | CPU38% - 52% <> GPU80% - 81% <> |
| 4K (Ultra HD) | CPU42% - 56% <> GPU68% - 77% <> | CPU44% - 57% <> GPU75% - 79% <> | CPU42% - 57% <> GPU86% - 97% <> | CPU37% - 52% <> GPU86% - 97% <> |
The Core i5-10400T + GeForce RTX 4090 pairing runs this title with CPU utilization between 37% and 57% and GPU utilization between 58% and 97%. Core i5-10400T keeps significant headroom across presets, while GeForce RTX 4090 carries most of the graphics load at heavier visual settings. As resolution scales, average GPU load rises from 73% at 1080p to 83% at 4K, while CPU averages move from 49% to 48%.
From a utilization perspective, this is a GPU-heavy load profile. At 4K (Ultra HD) High, the GeForce RTX 4090 averages 92% usage (86-97%), while the Core i5-10400T stays at 50% (42-57%). This shows the graphics pipeline is carrying most of the workload, but utilization alone does not define the FPS limiter.
At 1080p, averages sit around CPU 49% and GPU 73%. At 1440p, that shifts to CPU 49% and GPU 73%, and at 4K it reaches CPU 48% and GPU 83%. This shows that GPU demand scales sharply with resolution while CPU load remains comparatively stable.
4K (Ultra HD) High is the most balanced preset based on this dataset. It runs around CPU 50% (42-57%) and GPU 92% (86-97%), which keeps GeForce RTX 4090 well utilized without constant max-out behavior while Core i5-10400T remains stable for consistent frame delivery.
Current utilization does not show an urgent upgrade requirement for either component; the Core i5-10400T and GeForce RTX 4090 remain reasonably matched for this title.
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.
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 hardware is below minimum requirements. CPU is the limiting factor (4% below minimum). Expect performance issues. Low settings recommended.
-20%vsrecommended
+244%vsrecommended
-4%vsminimum
+589%vsminimum
Yes, the Core i5-10400T paired with the GeForce RTX 4090 can run Rust smoothly up to 1440p achieving around 64 FPS at Ultra quality. Your GPU is 244% above the recommended specs, and your CPU is 20% below the recommended requirements.
This CPU + GPU combo costs approximately $1749 ($100 CPU (Rank #190 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 i5-10400T 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.
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 hardware falls below the minimum requirements for this game, which may result in poor performance.
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.
