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 108 FPS. At 1440p, all settings exceed 80 FPS. At 4K, frame rates range from 37 to 63 FPS.
The GeForce RTX 4090 is 244% above the recommended GPU (GeForce GTX 980) for Rust. The EPYC 7F52 is 238% above the recommended CPU (Core i7-4790K).
The EPYC 7F52 determines the performance ceiling at all 1080p settings, all 1440p settings, all 4k settings, while the GPU has headroom.
Approximated average price on current market:
Combo price: $3475. At 1080p Ultra, this combo delivers 108 FPS, equivalent to 0.03 FPS per dollar.
| Resolution | Low | Medium | High | Ultra |
|---|---|---|---|---|
| 1080p | 0.050 fps/$ | 0.045 fps/$ | 0.039 fps/$ | 0.031 fps/$ |
| 1440p | 0.038 fps/$ | 0.034 fps/$ | 0.028 fps/$ | 0.023 fps/$ |
| 4k | 0.018 fps/$ | 0.016 fps/$ | 0.014 fps/$ | 0.011 fps/$ |
* Table values represent FPS per Dollar (higher is better)
At 4k medium, the EPYC 7F52 sets the ceiling at about 55 FPS, while the GeForce RTX 4090 could reach 133 FPS. In this scenario, the CPU limits the GPU potential by 59% (FPS gap: 78 FPS). Overall distribution: CPU limits 12/12 cells, GPU limits 0/12, balanced 0/12.
Your EPYC 7F52 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 33% | CPU Limits GPU 35% | CPU Limits GPU 30% | CPU Limits GPU 35% |
| 1440p (2K QHD) | CPU Limits GPU 43% | CPU Limits GPU 45% | CPU Limits GPU 38% | CPU Limits GPU 37% |
| 4K (Ultra HD) | CPU Limits GPU 57% | CPU Limits GPU 59% | CPU Limits GPU 56% | CPU Limits GPU 56% |
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) | CPU34% - 36% <> GPU80% - 87% <> | CPU34% - 37% <> GPU80% - 85% <> | CPU33% - 36% <> GPU82% - 96% <> | CPU40% - 53% <> GPU82% - 96% <> |
| 1440p (2K QHD) | CPU34% - 36% <> GPU80% - 88% <> | CPU34% - 37% <> GPU80% - 86% <> | CPU33% - 37% <> GPU84% - 96% <> | CPU40% - 53% <> GPU83% - 96% <> |
| 4K (Ultra HD) | CPU24% - 33% <> GPU87% - 100% <> | CPU23% - 33% <> GPU87% - 99% <> | CPU23% - 33% <> GPU100% - 100% | CPU26% - 45% <> GPU100% - 100% |
The EPYC 7F52 + GeForce RTX 4090 pairing runs this title with CPU utilization between 23% and 53% and GPU utilization between 80% and 100%. EPYC 7F52 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 86% at 1080p to 97% at 4K, while CPU averages move from 38% to 30%.
This profile is GPU-bound. At 4K (Ultra HD) High, the GeForce RTX 4090 averages 100% usage (100-100%), while the EPYC 7F52 stays at 28% (23-33%), indicating the graphics pipeline is the limiting stage.
At 1080p, averages sit around CPU 38% and GPU 86%. At 1440p, that shifts to CPU 38% and GPU 87%, and at 4K it reaches CPU 30% and GPU 97%. This shows that workload scaling is present on both components, with stronger pressure on the GPU.
1080p (Full HD) High is the most balanced preset based on this dataset. It runs around CPU 34% (33-36%) and GPU 89% (82-96%), which keeps GeForce RTX 4090 well utilized without constant max-out behavior while EPYC 7F52 remains stable for consistent frame delivery.
Upgrade priority should be the GPU. The GeForce RTX 4090 reaches 100% average load at 4K (Ultra HD) High while the EPYC 7F52 still has headroom, so a faster graphics card would deliver the largest uplift.
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 238% above and your GPU is 244% above the recommended specs. Ultra settings at 1080p, or High at 1440p/4K.
+238%vsrecommended
+244%vsrecommended
+306%vsminimum
+589%vsminimum
Yes, the EPYC 7F52 paired with the GeForce RTX 4090 can run Rust smoothly up to 1440p achieving around 80 FPS at Ultra quality. Your GPU is 244% above the recommended specs, and your CPU is 238% above the recommended requirements.
This CPU + GPU combo costs approximately $3475 ($1826 CPU (Rank #441 Value) + $1649 GPU (Rank #77 Value)). Your EPYC 7F52 provides phenomenal top-tier performance but at a premium enthusiast price. Since you are essentially at the ceiling of current hardware capabilities, there are no meaningful performance upgrades available. However, if you wanted a more cost-effective build that still delivers a great experience, you could theoretically step down to a high-end processor with a significantly better value rating. For example, the EPYC 4585PX is a great upgrade option for around $699 (Rank #66 for value) while costing less than your current CPU.
Your EPYC 7F52 is already an incredibly powerful processor. While it's technically the first component to hit its limit (which is completely normal in state-of-the-art builds), there is no meaningful upgrade path that would drastically improve your Rust performance right now. CPU fully utilized 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 EPYC 7F52 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.
