Rust

The AMD Ryzen 9 5900X and NVIDIA GeForce RTX 3080 combination delivers a robust 1080p and 1440p experience in Rust, though 4K Ultra demands compromise. The data shows a CPU with substantial headroom and a GPU that becomes the primary bottleneck as resolution and settings increase, placing this pairing in the 71st percentile of all tested combos.

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

The Ryzen 9 5900X is a 12-core, 24-thread processor from the Zen 3 (Vermeer) architecture, with a base clock of 3.70 GHz and a boost clock of 4.80 GHz. Built on a 7 nm process, it features a 64 MB L3 cache and supports DDR4 memory. Its benchmark scores are strong across both single-threaded and multithreaded workloads, with a Cinebench R23 single-core score of 4680 and a multi-core score of 33150. The Geekbench single-core score of 2202 and multi-core score of 11877 further indicate a balanced design.

This CPU sits in the 90th percentile versus all CPUs, with an average benchmark score of 39453. Its nearest rivals show tight competition: the AMD EPYC 4245P scores 39383, a delta of 0.2%; the Intel Core i7-13700F scores 39095, a delta of 0.9%; the AMD Ryzen 7 PRO 8845HS scores 39747, a delta of -0.7%; and the Intel Core i7-13700 scores 39857, a delta of -1%. The 5900X performs essentially on par with these parts, with less than a 1% difference in either direction.

In Rust, the CPU's role is crucial for game logic, physics, and entity management. The high single-thread performance is evident in the 1080p Low result of 204.5 FPS, which is the highest average FPS recorded for this combo. This suggests that at lower settings and resolutions, the CPU is capable of feeding the GPU without being a limiting factor. The 12-core configuration also provides strong multithreaded capabilities, as shown by the 3DMark max-thread score of 10075, which can help maintain consistent frame pacing in Rust's complex simulation environments. The data indicates that the CPU is rarely the primary bottleneck in this pairing, especially at higher resolutions.

GPU Role — VRAM, clocks, and how they relate to this game's results

The NVIDIA GeForce RTX 3080 is built on the Ampere architecture with a GA102 chip, manufactured on an 8 nm process. It has 8704 shading units, 272 TMUs, and 96 ROPs, with 68 RT cores and 272 tensor cores. The GPU has a base clock of 1440 MHz and a boost clock of 1710 MHz, with 10 GB of GDDR6X memory on a 320-bit bus, providing a bandwidth of 760.3 GB/s.

The RTX 3080 achieves an average benchmark score of 35787, placing it in the 80th percentile versus all GPUs. Its nearest rivals are closely matched: the AMD Radeon Pro Duo scores 35860, a delta of -0.2%; the AMD Radeon 880M scores 35646, a delta of 0.4%; the AMD Radeon RX 7900 GRE scores 36101, a delta of -0.9%; and the NVIDIA GeForce RTX 5070 Ti Mobile scores 35435, a delta of 1%. These deltas are within a single percentage point, indicating that the RTX 3080 performs at a similar level to these competitors.

In Rust, the GPU's role becomes increasingly dominant as resolution and settings rise. The 4K Ultra result of 36.7 FPS is the lowest score recorded, while the 1080p Low result of 204.5 FPS is the highest. This trend highlights the GPU's workload scaling. The 10 GB VRAM is sufficient for Rust at these tested settings, as the game does not appear to exceed this capacity in the data. The FP32 performance of 29.77 TFLOPS and the pixel rate of 164.2 GPixel/s are significant factors in rendering the game's environments. The GPU is clearly the limiting component at 4K and at Ultra settings, as evidenced by the substantial FPS drops.

How This Combo Ranks — use comboRankInGame vs other tested combos

This specific combination of the AMD Ryzen 9 5900X and NVIDIA GeForce RTX 3080 ranks 492 out of 1717 tested combos in Rust. This places it in the upper tier of results, but not at the very top. The rank indicates that there are 491 other CPU-GPU pairings that achieve higher average FPS across the tested settings and resolutions.

The ranking reflects a balance between CPU and GPU performance. While the CPU is in the 90th percentile and the GPU in the 80th, their combination results in a mid-to-upper tier position. This is likely because Rust can be demanding on both components, and the pairing's overall performance is constrained by the need for both to work well together. The data does not specify which combos are ranked higher, but the 71st percentile position suggests that while this is a capable setup, there are more powerful combinations available. The rank of 492 out of 1717 also means that this combo outperforms 1225 other pairings, which is a solid result for a build based on these components.

Measured FPS Breakdown — resolution by resolution, settings by settings, exact numbers

The measured FPS data covers three resolutions and four settings levels, providing a comprehensive view of performance.

At 1920x1080, the combo achieves an average FPS of 204.5 on Low settings. On Medium, the average drops to 144.4 FPS, and on High it is 121.4 FPS. The most demanding setting, Ultra, yields an average of 92.3 FPS. This shows a clear scaling pattern where each increase in settings reduces performance, with the largest relative drop occurring between Low and Medium.

At 2560x1440, the results are lower across the board. Low settings produce an average FPS of 146.3, which is a significant reduction from the 1080p Low result. Medium settings average 102.7 FPS, High settings average 84.5 FPS, and Ultra settings average 63.6 FPS. The gap between Low and Medium at this resolution is less pronounced in percentage terms than at 1080p, but still substantial.

At 3840x2160, the GPU is heavily taxed. Low settings deliver an average of 86.2 FPS, which is the only 4K result above 60 FPS. Medium settings average 57.5 FPS, High settings average 51.7 FPS, and Ultra settings average 36.7 FPS. The 4K Ultra result is the weakest performance recorded, indicating that this resolution and setting combination is not playable at a smooth frame rate.

The data shows that the combo is best suited for 1080p and 1440p gaming, where it can maintain high frame rates even at Ultra settings. At 4K, only Low settings provide a consistently smooth experience, while Medium and above require compromises.

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

The transition from 1080p to 4K reveals a clear pattern of performance degradation that highlights the GPU as the limiting component. At Low settings, the average FPS drops from 204.5 at 1080p to 146.3 at 1440p, and then to 86.2 at 4K. This represents a 57.9% drop from 1080p to 4K at Low settings, indicating that the GPU is working progressively harder to render more pixels.

At Medium settings, the drop is from 144.4 FPS at 1080p to 102.7 FPS at 1440p, and then to 57.5 FPS at 4K. This is a 60.2% reduction from 1080p to 4K. The High settings show a similar trend: 121.4 FPS at 1080p, 84.5 FPS at 1440p, and 51.7 FPS at 4K, a 57.4% drop. The Ultra settings have the most severe scaling: 92.3 FPS at 1080p, 63.6 FPS at 1440p, and 36.7 FPS at 4K, a 60.2% reduction.

The consistency of the percentage drops across settings, roughly 57-60%, suggests that the resolution increase is the dominant factor, and the CPU's performance remains relatively constant. If the CPU were the bottleneck, the FPS would not scale as predictably with resolution. For example, the 1080p Low result of 204.5 FPS is likely near the CPU's maximum output for this workload, but the 4K Low result of 86.2 FPS shows that the GPU cannot maintain the same frame rate when pixel count quadruples. The data supports the conclusion that the RTX 3080 is the primary constraint at higher resolutions, while the Ryzen 9 5900X provides sufficient headroom to avoid limiting performance in most scenarios.