Rust

The AMD Ryzen 5 9600X paired with the AMD Radeon RX 580 is a study in CPU headroom wasted on a GPU that runs out of steam early. In Rust, this combination delivers playable frames at 1080p on lower presets, but the data shows a hard ceiling imposed by the graphics card as resolution climbs.

Resolution Scaling

The measured FPS numbers reveal a steep and consistent drop as resolution increases, confirming the RX 580 as the primary bottleneck. At 1080p with Low settings, the combo averages 75.2 FPS. Moving to 1440p drops that to 49.2 FPS, a 34.6% reduction. At 4K, the same Low preset falls to 30.7 FPS, which is 59.2% below the 1080p result. This pattern is not a quirk of one preset; it holds across the board. High settings at 1080p produce 40.2 FPS, at 1440p that falls to 26.6 FPS, and at 4K it reaches just 16.3 FPS.

The scaling curve indicates that the RX 580's pixel throughput is the limiting factor. The 256-bit memory bus and 256.0 GB/s bandwidth are simply not enough to feed the 4K frame buffer. The 6.175 TFLOPS of FP32 compute is also insufficient for the shader workload at higher resolutions. The CPU, with its 6 cores and 12 threads, is not the constraint here; the FPS drop from 1080p to 4K is far too steep to be explained by anything other than GPU saturation.

Settings Recommendations

For a smooth experience, the data points to Low settings as the only viable option at 1080p. The 75.2 FPS average at 1080p Low is the only measured result that clears the 60 FPS threshold. Medium settings at 1080p yield 48.9 FPS, which is playable but not ideal for a competitive survival game. High settings drop to 40.2 FPS, and Ultra falls to 35.0 FPS—both are too inconsistent for fast-paced gameplay.

At 1440p, the situation worsens. Low settings produce 49.2 FPS, which is borderline. Medium at 1440p is 33.9 FPS, and High is 26.6 FPS. The data suggests that 1440p is only playable on Low, and even then, the frame rate is below what most players would consider smooth. At 4K, no preset is playable. Low settings at 4K produce 30.7 FPS, Medium drops to 22.9 FPS, High is 16.3 FPS, and Ultra is 11.2 FPS. The recommendation is clear: use Low settings at 1080p for a responsive experience, or accept a slideshow at higher resolutions.

CPU Role

The Ryzen 5 9600X is a modern 6-core, 12-thread processor based on the Zen 5 architecture, codenamed Granite Ridge. It has a base clock of 3.90 GHz and a boost clock of 5.40 GHz. The benchmark data for this CPU is strong, with a Cinebench R23 multicore score of 25525 and a single-core score of 3603. Its average benchmark score of 28246 puts it at the 85th percentile of all CPUs tested.

In Rust, the CPU's role is to handle game logic, entity updates, and draw calls. The 9600X has ample headroom for this task. The measured FPS does not show any signs of CPU limitation; the frame rates are consistently bound by the GPU. The CPU's high single-thread performance, evidenced by the 3dmark single-thread score of 1253 and the Passmark single-thread score of 4570, ensures that the game's main thread is not a bottleneck. The 32 MB of shared L3 cache also helps with the game's asset streaming. However, none of this matters when the GPU cannot render frames fast enough to utilize that CPU power.

How This Combo Ranks

The combination of the Ryzen 5 9600X and the RX 580 ranks 1588 out of 1717 tested combos in Rust. This places it in the bottom 8% of all pairings, which is a poor result for a modern CPU. The ranking is dragged down entirely by the GPU. The CPU itself is a top-tier performer; its nearest rivals include the Intel Core i5-13490F with a 0.3% difference in average score, and the AMD Ryzen 7 8845HS with a -0.4% difference. The RX 580, however, is a different story.

The GPU's average benchmark score is 13559, placing it at the 53rd percentile of all GPUs. Its nearest rivals are the NVIDIA GeForce GTX 570 with a 0% difference, and the NVIDIA GeForce GTX 950 with a 0.1% difference. These are all older, lower-tier cards. The combo rank of 1588 reflects this mismatch: a high-end CPU paired with a mid-range GPU from a previous generation. The data suggests that this pairing is heavily unbalanced, and the GPU is the clear weak link.

GPU Role

The AMD Radeon RX 580 is an end-of-life product based on the Polaris 20 chip and the GCN 4.0 architecture. It has 8 GB of GDDR5 memory on a 256-bit bus, yielding a bandwidth of 256.0 GB/s. Its base clock is 1257 MHz with a boost clock of 1340 MHz. The GPU's benchmark scores are modest: a Passmark G3D score of 8813 and a Geekbench OpenCL score of 37453. It sits at the 53rd percentile of all GPUs, which is below average.

In Rust, the GPU is the definitive bottleneck. At 1080p Low, the GPU can manage 75.2 FPS, but this drops to 48.9 FPS at Medium and 40.2 FPS at High. The scaling between presets shows that the GPU is struggling with the increased shader complexity and texture loads. The 8 GB of VRAM is not the issue at 1080p, but at 4K, the card's 6.175 TFLOPS of compute and 42.88 GPixel/s pixel rate are simply inadequate. The 4K Ultra result of 11.2 FPS is a clear indication that the GPU is overwhelmed. The card's power draw of 185 W and dual-slot design are irrelevant to performance, but they do show that this is a power-hungry part for its output level.

Measured FPS Breakdown

The complete measured FPS data for Rust with this combo is as follows:

At 1920x1080, the average FPS is 75.2 on Low, 48.9 on Medium, 40.2 on High, and 35.0 on Ultra. This is the only resolution where any preset approaches a playable frame rate.

At 2560x1440, the average FPS drops to 49.2 on Low, 33.9 on Medium, 26.6 on High, and 22.9 on Ultra. The jump from 1080p to 1440p costs roughly 35% of the frame rate across all presets.

At 3840x2160, the average FPS falls to 30.7 on Low, 22.9 on Medium, 16.3 on High, and 11.2 on Ultra. This resolution is effectively unplayable with this hardware, regardless of settings.

The data shows a monotonically decreasing performance curve with no anomalies. Each preset and resolution step produces a predictable drop in FPS. This is a textbook example of GPU-bound scaling. The Ryzen 5 9600X has more than enough processing power to feed the RX 580, but the GPU cannot keep up. The result is a combination that is only usable for 1080p gaming on Low settings, and even then, the experience is not ideal for a game like Rust, which benefits from higher and more stable frame rates.