Rust

Resolution Scaling

The measured frames per second for this configuration show a steep, consistent drop as resolution climbs from 1920x1080 to 3840x2160, which is the classic signature of a GPU-bound workload at the higher end. At Low settings, the average frame rate falls from 203.9 FPS at 1080p to 181.1 FPS at 1440p, then to 123.1 FPS at 4K. That is a 40% reduction in average FPS from 1080p to 4K, indicating that the graphics card is carrying progressively more of the load as pixel count increases. The pattern is similar at Medium settings, where the average drops from 173 FPS at 1080p to 142.8 FPS at 1440p, and then to 83.8 FPS at 4K — a 52% decline from 1080p to 4K. This steeper percentage loss at Medium compared to Low suggests that the additional shading and texture work scales heavily with resolution, overwhelming the GPU faster.

At High settings, the average FPS at 1080p is 166.3, falling to 116.5 at 1440p and 69 at 4K. The 4K result is less than half of the 1080p figure, confirming that this is a scenario where the RTX 5080's compute and memory bandwidth are the limiting factors. The Ultra preset shows the same trend but from a lower starting point: 133.4 FPS at 1080p, 92.4 at 1440p, and 53.2 at 4K. The relative drop from 1080p to 4K at Ultra is 60%, the largest of any preset. This indicates that the Ultra settings introduce effects that are particularly expensive at high pixel densities. The data suggests that at 1080p, the CPU is still able to feed the GPU adequately, but the scaling curve flattens as the resolution rises, with the GPU becoming the clear bottleneck by 4K. Notably, the gap between Low and Ultra at 1080p is only 70.5 FPS, while at 4K the same gap is 69.9 FPS — nearly identical in absolute terms, which implies the CPU's influence on frame rate is roughly constant regardless of resolution, while the GPU's performance degradation with resolution is the dominant variable.

CPU Role

The AMD Ryzen 7 5800X is a Zen 3 (Vermeer) part with 8 cores and 16 threads, running at a base clock of 3.80 GHz and a boost clock of 4.70 GHz. Its benchmark scores place it in the 84th percentile for all CPUs, with a multi-threaded Cinebench R23 score of 23571 and a single-core score of 3327. In Rust, which is known for its heavy server-side and physics simulation load, these numbers matter. The 1080p Low preset yields 203.9 FPS, which is the highest measured value in the entire dataset. This suggests that at lower resolutions, the CPU's 8 cores and 16 threads are sufficient to keep the frame rate high, but the boost clock of 4.70 GHz is likely the key enabler — Rust's main game thread tends to be single-threaded. The single-core Cinebench R23 score of 3327 indicates strong per-thread performance, which helps explain why the 1080p results stay above 130 FPS even at Ultra settings.

However, the data shows that the CPU's role diminishes as resolution increases. The delta between 1080p and 4K at Low settings is 80.8 FPS, which is the largest absolute drop across all presets. This is because the GPU is no longer able to keep up with the CPU's output at 4K. At 1080p High, the average is 166.3 FPS, which is still high but below the 203.9 FPS Low result — this indicates that even at 1080p, some settings like shadows and draw distance are adding enough GPU load to prevent the CPU from being the sole limiter. Compared to its nearest rivals, the 5800X is effectively tied with the AMD Ryzen 7 5800 (delta of 0.3%) and the AMD Ryzen 5 8500GE (delta of -0.4%), while slightly behind the Intel Core i7-13700H (delta of -0.4%) and the Intel Core i5-12600KF (delta of -0.8%). These small deltas mean that swapping this CPU for any of those alternatives would produce nearly identical frame rates in Rust at the same resolution and settings. The 32 MB of L3 cache is another factor; Rust's procedural map and entity data benefit from large caches, and this CPU's cache architecture is well-suited to that workload.

GPU Role

The NVIDIA GeForce RTX 5080 is built on the Blackwell 2.0 architecture with a GB203 chip, featuring 10752 shading units and 112 ROPs. Its memory subsystem is a key asset for Rust: 16 GB of GDDR7 on a 256-bit bus, delivering 960.0 GB/s of bandwidth. Rust's textures and world data are memory-hungry, and the high bandwidth ensures that texture streaming at 4K Ultra does not cause frame drops below the 53.2 FPS average. The GPU's base clock is 2295 MHz with a boost of 2617 MHz, and its FP32 throughput is 56.28 TFLOPS. In the passmark G3D benchmark, the card scores 36565, placing it in the 89th percentile of all GPUs. Its nearest rivals include the Intel Arc A570M (delta of 1.6%), the Intel Arc Pro A60 (delta of -1.9%), and the Intel Arc A580 (delta of 2.5%), which are all significantly slower in raw specs — this suggests the RTX 5080 is a top-tier part that is being tested against lower-tier cards.

The GPU's role is most evident in the 4K results. At 4K Ultra, the average FPS is 53.2, which is below the 60 FPS threshold that many players consider playable. At 4K High, the average rises to 69 FPS, indicating that the GPU is the bottleneck — lowering the preset from Ultra to High yields a 29.7% improvement in average FPS. This is a clear sign that the Ultra preset's additional effects (likely ambient occlusion and high-res shadows) are disproportionately expensive at 4K. The 16 GB of VRAM is not being exhausted at any of the tested settings, as there is no evidence of a sudden frame rate collapse that would indicate texture swapping. The 960.0 GB/s bandwidth is also sufficient for the game's streaming needs; if it were not, the 4K Low result of 123.1 FPS would be much lower. The GPU's boost clock of 2617 MHz helps sustain high frame rates at 1440p, where the 181.1 FPS Low result shows the card is still well ahead of the CPU's demands.

How This Combo Ranks

This specific combination of the AMD Ryzen 7 5800X and the NVIDIA GeForce RTX 5080 ranks 89th out of 1717 tested combos in Rust, placing it in the top 5.2% of all configurations. This is a strong result, but the rank is not as high as the individual component percentiles might suggest. The CPU is in the 84th percentile and the GPU is in the 89th percentile, yet the combo rank of 89 out of 1717 indicates that there are many other pairings that outperform it. This is likely due to the CPU being a generation behind the GPU — the 5800X was released in late 2020, while the RTX 5080 is a 2025 part. The data shows that at 1080p Low, the combo achieves 203.9 FPS, which is excellent, but the rank suggests that other combos with newer CPUs (e.g., Intel 13th or 14th gen, or AMD Ryzen 7000 series) can push higher frame rates at lower resolutions where the CPU matters more.

The rank also reflects the game's specific behavior. Rust is not a linear scaling workload; it has frame rate spikes and drops based on server events and map complexity. The measured average FPS at 4K Ultra of 53.2 is below the 60 FPS standard, which would push this combo down in the ranking compared to combos that can hold above 60 FPS at 4K Ultra. However, the combo's strength is in its consistency across presets. The delta between Low and Ultra at 1080p is 70.5 FPS, which is a moderate range, indicating that the combo can handle both competitive (Low) and visual (Ultra) playstyles without a catastrophic performance cliff. The 1440p results are the sweet spot: 181.1 FPS at Low and 92.4 FPS at Ultra, both of which are above the 60 FPS threshold. This suggests that the combo is best suited for 1440p gaming, where it ranks highly, but at 4K, it falls short of the top-tier combos that can maintain higher frame rates.

Settings Recommendations

Based on the measured rows, the optimal preset for this combo depends on the target resolution and the player's preference for visual fidelity versus frame rate. At 1080p, the Low preset delivers the highest average FPS at 203.9, but even the Ultra preset achieves 133.4 FPS, which is well above the 60 FPS playability threshold. Since the CPU and GPU have headroom at 1080p, the Ultra preset is the best choice for a visually rich experience without sacrificing smoothness. The Medium preset at 173 FPS and High at 166.3 FPS are also viable, but they offer no meaningful frame rate advantage over Ultra, which is only 39.7 FPS slower than Low. Therefore, at 1080p, the recommendation is Ultra for the best balance of image quality and performance.

At 1440p, the Ultra preset drops to 92.4 FPS, which is still comfortably above 60 FPS, but the High preset at 116.5 FPS and Medium at 142.8 FPS provide more headroom for competitive play or for maintaining frame rate during intense server events. The Low preset at 181.1 FPS is overkill for most players, but it is the best choice for high-refresh-rate monitors (above 144 Hz). For a typical 1440p monitor with a 144 Hz refresh rate, the Medium preset is the recommended sweet spot: it provides 142.8 FPS, which is close to the refresh limit, while offering better visuals than Low. The High preset is also acceptable at 116.5 FPS, but the Ultra preset at 92.4 FPS may cause noticeable dips during heavy moments, so it is only recommended for players who prioritize visuals over frame rate.

At 4K, the situation is more constrained. The Ultra preset's 53.2 FPS average is below the 60 FPS threshold and will feel stuttery to most players. The High preset at 69 FPS is the minimum recommendation for playable performance, but the Medium preset at 83.8 FPS provides a more comfortable margin. The Low preset at 123.1 FPS is the only 4K setting that offers a truly smooth experience, but it sacrifices most of the visual enhancements that make Rust look modern. Therefore, for 4K, the Medium preset is the recommended default: it delivers 83.8 FPS, which is smooth enough for most players, and it retains a reasonable level of detail. The High preset is a fallback for those who want better visuals, but the Ultra preset should be avoided unless the player is willing to accept sub-60 FPS performance. In summary, the data shows that this combo is most effective at 1080p and 1440p, where it can run high or ultra presets at high frame rates, while at 4K, it requires a drop to medium or low settings to stay above the playability threshold.