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 102 FPS. At 1440p, all settings exceed 79 FPS. At 4K, frame rates range from 35 to 60 FPS.
The GeForce RTX 4090 is 244% above the recommended GPU (GeForce GTX 980) for Rust. The EPYC 9684X is 895% above the recommended CPU (Core i7-4790K).
The EPYC 9684X 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: $16405. At 1080p Ultra, this combo delivers 102 FPS, equivalent to 0.01 FPS per dollar.
| Resolution | Low | Medium | High | Ultra |
|---|---|---|---|---|
| 1080p | 0.010 fps/$ | 0.009 fps/$ | 0.008 fps/$ | 0.006 fps/$ |
| 1440p | 0.008 fps/$ | 0.007 fps/$ | 0.006 fps/$ | 0.005 fps/$ |
| 4k | 0.004 fps/$ | 0.003 fps/$ | 0.003 fps/$ | 0.002 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 medium, the EPYC 9684X sets the ceiling at about 51 FPS, while the GeForce RTX 4090 could reach 135 FPS. In this scenario, the CPU limits the GPU potential by 62% (FPS gap: 84 FPS). Overall distribution: CPU limits 12/12 cells, GPU limits 0/12, balanced 0/12.
Your EPYC 9684X 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 34% | CPU Limits GPU 37% | CPU Limits GPU 33% | CPU Limits GPU 39% |
| 1440p (2K QHD) | CPU Limits GPU 45% | CPU Limits GPU 47% | CPU Limits GPU 41% | CPU Limits GPU 40% |
| 4K (Ultra HD) | CPU Limits GPU 60% | CPU Limits GPU 62% | CPU Limits GPU 59% | CPU Limits GPU 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, not generic utilization heuristics.
| Resolution | Low | Medium | High | Ultra |
|---|---|---|---|---|
| 1080p (Full HD) | CPU30% - 33% <> GPU71% - 99% <> | CPU30% - 33% <> GPU75% - 99% <> | CPU29% - 32% <> GPU85% - 100% <> | CPU35% - 51% <> GPU85% - 100% <> |
| 1440p (2K QHD) | CPU30% - 33% <> GPU71% - 100% <> | CPU30% - 33% <> GPU75% - 100% <> | CPU29% - 32% <> GPU86% - 100% <> | CPU35% - 51% <> GPU86% - 100% <> |
| 4K (Ultra HD) | CPU24% - 31% <> GPU72% - 100% <> | CPU24% - 31% <> GPU76% - 99% <> | CPU24% - 30% <> GPU87% - 100% <> | CPU27% - 40% <> GPU87% - 100% <> |
The EPYC 9684X + GeForce RTX 4090 pairing runs this title with CPU utilization between 24% and 51% and GPU utilization between 71% and 100%. EPYC 9684X 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 89% at 1080p to 91% at 4K, while CPU averages move from 34% to 29%.
From a utilization perspective, this is a GPU-heavy load profile. At 4K (Ultra HD) High, the GeForce RTX 4090 averages 94% usage (87-100%), while the EPYC 9684X stays at 27% (24-30%). 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 34% and GPU 89%. At 1440p, that shifts to CPU 34% and GPU 90%, and at 4K it reaches CPU 29% and GPU 91%. This shows that workload scaling is limited, which can indicate engine-side constraints.
1440p (2K QHD) Medium is the most balanced preset based on this dataset. It runs around CPU 32% (30-33%) and GPU 88% (75-100%), which keeps GeForce RTX 4090 well utilized without constant max-out behavior while EPYC 9684X remains stable for consistent frame delivery.
Current utilization does not show an urgent upgrade requirement for either component; the EPYC 9684X 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 CPU is 895% above and your GPU is 244% above the recommended specs. Ultra settings at 1080p, or High at 1440p/4K.
+895%vsrecommended
+244%vsrecommended
+1097%vsminimum
+589%vsminimum
Yes, the EPYC 9684X paired with the GeForce RTX 4090 can run Rust smoothly up to 1440p achieving around 79 FPS at Ultra quality. Your GPU is 244% above the recommended specs, and your CPU is 895% above the recommended requirements.
This CPU + GPU combo costs approximately $16405 ($14756 CPU (Rank #509 Value) + $1649 GPU (Rank #77 Value)). Your EPYC 9684X 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 Ryzen Threadripper PRO 9995WX is a great upgrade option for around $11699 (Rank #418 for value) while costing less than your current CPU.
Your EPYC 9684X 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 9684X 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.
