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 74 FPS. At 1440p, frame rates range from 57 to 125 FPS. At 4K, frame rates range from 23 to 59 FPS.
The Radeon R9 390 is 20% below recommended, but 60% above minimum for Rust. The Ryzen 7 9800X3D is 226% above the recommended CPU (Core i7-4790K).
The Radeon R9 390 sets the FPS ceiling at all 1080p settings, all 1440p settings, all 4k settings, while the Ryzen 7 9800X3D still has additional frame-generation headroom.
Approximated average price on current market:
Combo price: $530.38. At 1080p Ultra, this combo delivers 74 FPS, equivalent to 0.14 FPS per dollar.
| Resolution | Low | Medium | High | Ultra |
|---|---|---|---|---|
| 1080p | 0.300 fps/$ | 0.238 fps/$ | 0.181 fps/$ | 0.140 fps/$ |
| 1440p | 0.236 fps/$ | 0.187 fps/$ | 0.140 fps/$ | 0.107 fps/$ |
| 4k | 0.111 fps/$ | 0.089 fps/$ | 0.064 fps/$ | 0.043 fps/$ |
* Table values represent FPS per Dollar (higher is better)
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.
At 4k ultra, the Radeon R9 390 sets the ceiling at about 32 FPS, while the Ryzen 7 9800X3D has headroom up to 83 FPS. In this scenario, the GPU limits the CPU potential by 61% (FPS gap: 51 FPS). Overall distribution: GPU limits 12/12 cells, CPU limits 0/12, balanced 0/12.
Your Radeon R9 390 is the limiting side in the heaviest mismatch. This means part of the Ryzen 7 9800X3D frame-generation potential remains unused in those settings.
| Resolution | Low | Medium | High | Ultra |
|---|---|---|---|---|
| 1080p (Full HD) | GPU Limits CPU 40% | GPU Limits CPU 40% | GPU Limits CPU 45% | GPU Limits CPU 50% |
| 1440p (2K QHD) | GPU Limits CPU 41% | GPU Limits CPU 41% | GPU Limits CPU 47% | GPU Limits CPU 50% |
| 4K (Ultra HD) | GPU Limits CPU 53% | GPU Limits CPU 53% | GPU Limits CPU 56% | GPU Limits CPU 61% |
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.
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 226% below recommended and your GPU is 20% below recommended, but both meet minimum specs. Playable at Low/Medium settings, 1080p or below.
+226%vsrecommended
-20%vsrecommended
+292%vsminimum
+60%vsminimum
Yes, the Ryzen 7 9800X3D paired with the Radeon R9 390 can run Rust smoothly up to 1080p achieving around 74 FPS at Ultra quality. Your GPU is 20% below the recommended specs, and your CPU is 226% above the recommended requirements.
This CPU + GPU combo costs approximately $530.38 ($465.38 CPU + $65 GPU). Since the GPU is the main limiting factor, investing in a stronger GPU will improve your framerates and overall value. For example, upgrading to the GeForce GTX 1080 for around $599 (Rank #86 for value) could deliver noticeably better performance.
For Rust, upgrading the GPU would give you the most noticeable improvement. The Radeon R9 390 is the limiting factor here, while the Ryzen 7 9800X3D still has spare capacity. A more powerful GPU would unlock higher FPS, especially at higher resolutions and quality presets. GPU-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 setup meets the minimum requirements but falls short of the recommended specs. You may need to lower some settings for smooth 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.
