Rust

CPU Role — cores, clocks, and how they relate to this game's results

The AMD Ryzen 9 9950X3D is a 16-core, 32-thread processor based on the Zen 5 architecture (Granite Ridge), built on a 4 nm process at TSMC. Its base clock is 4.30 GHz with a boost clock of 5.70 GHz, and it carries 128 MB of shared L3 cache alongside 1 MB of L2 cache per core. This is a desktop-class part with a 170 W TDP, designed for the AMD Socket AM5 platform with dual-channel DDR5 memory support and 24 PCIe Gen 5 lanes from the CPU.

In the context of Rust, the CPU's role is substantial but not decisive in the measured results. The benchmark data shows a processor that ranks in the 96th percentile among all CPUs, with an average benchmark score of 71,660. That places it marginally ahead of the Intel Xeon Platinum 8270 (0.9% higher), the AMD Ryzen 9 9950X (1.8% higher), and the Intel Core i7-14700KF (2.2% higher), while sitting 1.9% behind the Intel Xeon 6517P. In synthetic multi-threaded tests, the 9950X3D scores 59,712 in Cinebench R23 multi-core and 25,079 in Cinebench R20 multi-core, with a single-core score of 8,430 in Cinebench R23. These numbers indicate a very strong CPU, yet the frame rates in Rust tell a different story about where the bottleneck lies.

The measured FPS at 1080p Low is 75.5, which is the highest average across all settings and resolutions. At 1080p Medium, it drops to 52.0, and at 1080p High it is 41.0. The CPU has ample headroom — 32 threads and a high boost clock — but the game's performance at lower resolutions suggests that the graphics card is the limiting factor. Rust is a game that can be demanding on both CPU and GPU, but the data here indicates that even at 1080p Low, the frame rate does not reach high refresh rates, which points to the GPU holding back the system rather than the CPU. The 9950X3D's 16 cores and 32 threads are more than sufficient for Rust's threading model, and the large L3 cache (128 MB shared) helps with data-heavy scenes, but the RX 580's age and architecture limit overall throughput.

The CPU's benchmark scores also reveal its strength in both lightly-threaded and heavily-threaded workloads. The single-thread score in Geekbench is 3,401, and the PassMark single-thread score is 4,737. In multi-threaded PassMark, it achieves 70,255. These figures suggest that the CPU would not be a bottleneck in most gaming scenarios, including Rust. However, the measured FPS at 4K Ultra (12.3) and 4K High (17.9) are far below playable thresholds, and even at 1440p Low (52.9), the performance is modest. The CPU's role is to feed the GPU with draw calls and game logic, and with a 16-core processor, it is unlikely to be the constraint. The data strongly implies that the RX 580 is the component that dictates the frame rates, especially at higher resolutions and settings.

FAQ — 4-6 Q&A pairs answerable from FACT PACK data

Q: What is the highest average FPS achieved by this combo in Rust, and at what settings?

A: The highest average FPS is 75.5, achieved at 1920x1080 with Low settings. This is the only measured configuration that exceeds 60 FPS, with the next closest being 52.9 at 2560x1440 Low and 52.0 at 1080p Medium.

Q: How does the CPU compare to its nearest rival, the AMD Ryzen 9 9950X?

A: The Ryzen 9 9950X3D has an average benchmark score of 71,660, which is 1.8% higher than the AMD Ryzen 9 9950X's score of 70,420. This places the 9950X3D as the slightly faster part in overall CPU benchmarks.

Q: What is the combo's rank among all tested CPU-GPU combinations in Rust?

A: This combo ranks 1,576 out of 1,717 tested combinations in Rust. This places it in the lower portion of the ranking, reflecting the GPU's limitations rather than the CPU's capabilities.

Q: What is the difference in FPS between 1080p Low and 4K Low settings?

A: At 1080p Low, the average FPS is 75.5, while at 4K Low, it drops to 31.6. This represents a 58.1% reduction in frame rate when moving from 1080p to 4K at the same Low settings.

Q: Is the GPU's benchmark score competitive with its nearest rivals?

A: The RX 580 has an average benchmark score of 13,559, which is essentially identical to the NVIDIA GeForce GTX 570 (13,564, 0% delta) and the NVIDIA GeForce GTX 950 (13,549, 0.1% delta). It is 1.1% ahead of the AMD Radeon Pro 455 and 1.1% behind the NVIDIA P106-090.

Q: What is the CPU's percentile ranking among all CPUs?

A: The Ryzen 9 9950X3D ranks in the 96th percentile among all CPUs. This means it performs better than 96% of CPUs in the benchmark database, confirming its high-end status.

Settings Recommendations — which preset gives the best experience per the measured rows

The data shows a clear trade-off between visual quality and frame rate. At 1080p, the Low preset delivers 75.5 FPS, which is the only configuration that approaches a smooth experience for fast-paced gameplay. The Medium preset at 1080p drops to 52.0 FPS, and High falls to 41.0 FPS, while Ultra is only 31.1 FPS. Given that Rust is a survival game where responsiveness matters, the Low preset at 1080p is the most playable option, providing a 45.2% improvement over Medium at the same resolution.

At 1440p, the Low preset yields 52.9 FPS, which is still above 50 but below the 60 FPS threshold that many players prefer. Medium at 1440p drops to 31.3 FPS, and High is 30.0 FPS, with Ultra at 23.1 FPS. The step from Low to Medium at 1440p represents a 40.8% performance loss, which is substantial. For players who prioritize frame rate over detail, 1440p Low is the only viable option at this resolution, and even it is marginal.

At 4K, all presets are below playable levels. The best 4K result is Low at 31.6 FPS, followed by Medium at 19.3 FPS, High at 17.9 FPS, and Ultra at 12.3 FPS. None of these are recommended for actual gameplay. The data shows that the combo is best suited for 1080p Low, where it achieves 75.5 FPS, or 1440p Low, where it achieves 52.9 FPS. The performance gap between Low and Medium is consistent across resolutions, suggesting that the GPU's memory bandwidth (256.0 GB/s) and shading units (2,304) are the limiting factors. For the best experience per the measured rows, 1080p Low is the clear choice, with 1440p Low as a secondary option if resolution is more important than frame rate.

How This Combo Ranks — use comboRankInGame vs other tested combos

This combo ranks 1,576 out of 1,717 tested combinations in Rust, placing it in the bottom 8.2% of all tested systems. This is a low ranking, and it is instructive to interpret it in light of the individual components. The CPU is a top-tier part, ranking in the 96th percentile among all CPUs with an average benchmark score of 71,660. The GPU, however, ranks in the 53rd percentile among all GPUs, with an average benchmark score of 13,559. The combo's low rank in Rust is therefore attributable to the GPU, not the CPU.

The rank of 1,576 out of 1,717 means that the vast majority of tested combos achieve higher average FPS in Rust. Given the CPU's strength, this is a clear indication that the RX 580 is holding back the system. The GPU's nearest rivals — the GTX 570, GTX 950, Radeon Pro 455, and P106-090 — all have similar average benchmark scores, confirming that the RX 580 is a mid-range part from an older generation. In Rust, which can be demanding on GPU resources at higher settings, this GPU simply does not have the raw throughput to deliver high frame rates.

The combo's rank also suggests that other combos with weaker CPUs but stronger GPUs would likely perform better in this game. The data shows that the CPU is not the bottleneck, so any improvement in GPU would have a direct impact on the measured FPS. For instance, the CPU's 16 cores and 32 threads are more than adequate for Rust, but the GPU's 6.175 TFLOPS of FP32 performance and 8 GB of GDDR5 memory on a 256-bit bus are insufficient for higher settings. In summary, the combo rank is low because the GPU is a mid-range part from 2017, while the CPU is a flagship from 2025.

Resolution Scaling — how FPS drops from 1080p to 4K and what it says about the limiting component

The measured FPS data shows a steep decline as resolution increases, which is a classic sign of a GPU-bound system. At Low settings, the average FPS drops from 75.5 at 1080p to 52.9 at 1440p (a 30.0% decrease) and then to 31.6 at 4K (a 40.3% decrease from 1440p, and 58.1% from 1080p). At Medium settings, the drop is from 52.0 at 1080p to 31.3 at 1440p (a 39.8% decrease) and then to 19.3 at 4K (a 38.3% decrease from 1440p, and 62.9% from 1080p). At High settings, the drop is from 41.0 at 1080p to 30.0 at 1440p (a 26.8% decrease) and then to 17.9 at 4K (a 40.3% decrease from 1440p, and 56.3% from 1080p). At Ultra settings, the drop is from 31.1 at 1080p to 23.1 at 1440p (a 25.7% decrease) and then to 12.3 at 4K (a 46.8% decrease from 1440p, and 60.5% from 1080p).

These percentage drops are substantial at every step, and they become more pronounced at 4K. The pattern indicates that the GPU is the limiting component, as the CPU has more than enough headroom to handle the increased resolution without a significant impact on frame rate. The RX 580's memory bandwidth of 256.0 GB/s and its 8 GB of GDDR5 memory are stretched thin at higher resolutions, where the pixel throughput demands are much higher. The GPU's pixel rate of 42.88 GPixel/s and texture rate of 193.0 GTexel/s are simply not sufficient for 4K rendering in Rust, even at Low settings.

The data also shows that the gap between 1080p and 4K is larger at Medium and High settings than at Low settings, which further confirms the GPU bottleneck. At Low settings, the game is less demanding on the GPU, but even then, the 4K result of 31.6 FPS is less than half of the 1080p result. This suggests that the GPU is the primary constraint in all configurations, and the CPU's role is secondary. If the CPU were the limiting factor, we would expect the frame rates to remain relatively flat across resolutions, or to see a smaller drop from 1080p to 4K. Instead, the sharp decline in FPS as resolution increases is a definitive indicator that the AMD Radeon RX 580 is the component that must be upgraded to improve performance in Rust.