Rust

The AMD Ryzen 5 4600G and AMD Radeon RX 7800 XT pairing delivers a distinctive performance profile in Rust, characterized by a powerful GPU constrained by a mid-range CPU. The measured data shows that while the RX 7800 XT provides substantial graphical headroom, the 4600G’s Zen 2 architecture becomes the primary limiting factor at lower resolutions and settings. This analysis breaks down the specific roles of each component, the measured FPS across resolutions, and the optimal settings for this combination.

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

The Ryzen 5 4600G is a 6-core, 12-thread processor based on the Zen 2 architecture, with a base clock of 3.70 GHz and a boost clock of 4.20 GHz. It features 8 MB of shared L3 cache and supports DDR4 memory through a dual-channel interface. In Rust, a game known for its heavy server-side and simulation logic, the CPU's multi-threaded capability is critical. The 4600G's Cinebench R23 multi-core score of 13593 and single-core score of 1919 indicate a processor that is competent for gaming but not at the top tier for high-refresh-rate scenarios.

The data suggests that the CPU significantly influences performance at 1080p. At 1920x1080 with Low settings, the system achieves 155 FPS, but this drops to 115 FPS at High settings. This 26% reduction in frame rate as settings increase is more pronounced than what would be expected from GPU load alone, hinting that the CPU is nearing its limit in handling Rust’s game logic and draw calls. The 4600G’s PassMark multi-thread score of 15992 places it in the 71st percentile of all CPUs, but its nearest rivals, such as the AMD Ryzen 3 PRO 5355GE (avg score 17482) and Intel Core i3-14100T (avg score 17648), show that it is not an outlier in performance. The deltaPct values of 0.1% and -0.8% respectively show that this CPU is essentially on par with these alternatives in synthetic benchmarks, meaning its gaming performance is typical for its class.

At higher resolutions like 1440p and 4K, the CPU’s relative impact diminishes. At 2560x1440, the FPS at Low settings is 137, which is only 12% lower than at 1080p, whereas the drop from Low to High at 1440p is 42% (from 137 to 79 FPS). This pattern indicates that as pixel count increases, the GPU becomes the bottleneck, and the CPU’s influence on the final frame rate wanes. The 4600G’s 3DMark scores—4863 for 16 threads and 4889 for max threads—show balanced scaling, but its single-thread score of 726 is modest, which directly impacts Rust’s main-thread performance in crowded scenes.

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

The AMD Radeon RX 7800 XT is a high-end graphics card built on the RDNA 3.0 architecture, featuring 16 GB of GDDR6 memory on a 256-bit bus, providing a bandwidth of 624.1 GB/s. Its boost clock is 2430 MHz, with a game clock of 2124 MHz. This large VRAM pool is particularly beneficial for Rust, which can consume significant memory for textures and world data at higher settings. The GPU's PassMark G3D score of 24176 and its 51st percentile ranking among all GPUs indicate strong overall performance, though its nearest rivals—the NVIDIA GeForce GTX 1660 (avg score 11680) and AMD Radeon RX 6500 XT (avg score 11842)—are far less powerful, suggesting the RX 7800 XT is in a different performance tier despite the percentile ranking.

The GPU’s role becomes evident when examining the FPS scaling with resolution. At 4K (3840x2160), the card produces 83 FPS at Low settings but only 47 FPS at High. This 43% drop from Low to High at 4K shows the GPU is heavily taxed by higher quality presets. The 4K Medium preset yields 55 FPS, with a min FPS of 47 and max of 64, indicating frame time variance that could impact smoothness. The RX 7800 XT’s 37.32 TFLOPS of FP32 compute and 583.2 GTexel/s texture rate are substantial, but the data shows it cannot maintain 60 FPS at 4K High, which is a crucial threshold for many players.

At 1080p and 1440p, the GPU has more headroom. At 1920x1080 Ultra, it achieves 88 FPS, which is 43% lower than at Low settings (155 FPS). This scaling suggests that at lower resolutions, the CPU is the primary limiter, preventing the GPU from reaching its full potential. The RX 7800 XT’s high memory bandwidth and 16 GB VRAM are underutilized at 1080p, as the CPU cannot feed frames fast enough. The card’s DirectX 12 score of 93 in PassMark is low, but this is a synthetic test that doesn’t reflect real-world Rust performance, which is more dependent on CPU and memory latency.

FAQ

Q: Why is the FPS at 1080p Low (155 FPS) only slightly higher than at 1440p Low (137 FPS)?

A: The data shows a 13% difference between these two settings, which is smaller than the 26% drop from 1080p Low to 1080p High. This indicates that at Low settings, the CPU (Ryzen 5 4600G) is the limiting factor, and increasing resolution to 1440p does not significantly change the CPU-bound scenario.

Q: Is the RX 7800 XT capable of running Rust at 4K smoothly?

A: Based on the measured FPS, the card achieves 47 FPS at 4K High and 55 FPS at 4K Medium. While the 4K Low preset reaches 83 FPS, none of the higher presets maintain a consistent 60 FPS, with the 4K Medium showing a min FPS of 47.

Q: How does the CPU’s performance compare to its nearest rivals in synthetic benchmarks?

A: The Ryzen 5 4600G has an average benchmark score of 17507. Its nearest rival, the AMD Ryzen 3 PRO 5355GE, has an average score of 17482, a delta of 0.1%, making them effectively identical. The Intel Core i3-14100T scores 17648, which is 0.8% higher, showing the 4600G is within a 1% margin of these alternatives.

Q: What is the best resolution to use for a balance of visual quality and performance?

A: The measured data shows that at 2560x1440 High, the system achieves 79 FPS, which is above the 60 FPS threshold and offers better visual fidelity than 1080p. At 1920x1080 High, it hits 115 FPS, but the 1440p High setting provides a more balanced experience given the GPU’s capabilities.

Q: Does the GPU’s 16 GB VRAM make a difference in Rust?

A: While the fact pack does not provide direct VRAM usage data, the RX 7800 XT’s 16 GB capacity is larger than what is typically required for Rust at the tested settings. The performance drops from 1080p to 4K are more attributable to compute load than memory capacity, as the card’s 624.1 GB/s bandwidth is ample for the game’s textures.

Q: What does the combo rank of 1346 out of 3723 tell us?

A: This rank places the combination in the 36th percentile of all tested combos, meaning that while it is not a top-tier pairing, it outperforms a majority of systems tested. The rank suggests that the CPU and GPU are mismatched to some degree, with the GPU having more headroom than the CPU can utilize.

Settings Recommendations

Based on the measured FPS, the Medium preset at 2560x1440 offers the best balance between visual quality and performance. At this setting, the system achieves an average of 94 FPS, with a min FPS of 80 and max of 108, providing a smooth experience without sacrificing too much detail. The 4K Medium setting (55 FPS) is borderline playable but may suffer from frame drops, as indicated by the 47 FPS minimum. For users prioritizing frame rate over fidelity, the 1080p High preset (115 FPS) is a strong option, as it delivers high FPS while maintaining a reasonable level of graphical detail.

The data shows that the Ultra preset is not well-suited for this combination. At 1080p Ultra, the system only manages 88 FPS, and at 1440p Ultra it drops to 60 FPS, which is the bare minimum for competitive play. At 4K Ultra, the FPS falls to 36, which is unplayable for most users. Therefore, the High preset at 1440p (79 FPS) is recommended as the highest quality setting that maintains a comfortable frame rate. The Low preset at any resolution provides the highest FPS but sacrifices visual quality, which may not be necessary given the GPU’s capabilities.

How This Combo Ranks

The AMD Ryzen 5 4600G and AMD Radeon RX 7800 XT combination ranks 1346 out of 3723 tested combos in Rust. This places it in the top 36% of all systems, which is a respectable position given the CPU’s mid-range status. The ranking reflects that the GPU is capable of driving high frame rates, but the CPU limits the overall potential. In comparison to the GPU’s nearest rivals, the RX 7800 XT has a PassMark score of 24176, which is significantly higher than the GTX 1660’s 11680, showing that the GPU is far more powerful than the benchmark’s closest peers.

The CPU’s percentile ranking of 71% versus the GPU’s 51% suggests that the processor is relatively stronger in its own market segment than the graphics card is in its respective tier. This mismatch is evident in the measured FPS data, where the system performs better at higher resolutions where the GPU is more utilized. The combo rank of 1346 indicates that while this is not a top-tier pairing, it is far from the bottom, and the system is well-suited for 1080p and 1440p gaming, with 4K being possible at lower settings.

Measured FPS Breakdown

At 1920x1080, the system shows a clear progression from Low to Ultra. The Low preset achieves 155 FPS, Medium reaches 133 FPS (with a min of 113 and max of 153), High drops to 115 FPS, and Ultra falls to 88 FPS. This 43% reduction from Low to Ultra indicates that the CPU becomes a bottleneck at higher settings, as the GPU has plenty of headroom at this resolution.

At 2560x1440, the FPS values are 137 for Low, 94 for Medium (min 80, max 108), 79 for High, and 60 for Ultra. The drop from Low to Ultra is 56%, which is steeper than at 1080p, showing that the GPU is starting to become more involved. The 1440p Medium setting provides a very playable experience with a 94 FPS average.

At 3840x2160, the system produces 83 FPS at Low, 55 FPS at Medium (min 47, max 64), 47 FPS at High, and 36 FPS at Ultra. The 4K resolution is clearly GPU-bound, as the FPS scales more dramatically with settings. The difference between Low and Ultra is 57%, and the card struggles to maintain 60 FPS at any setting above Low.

Resolution Scaling

The FPS drop from 1080p to 4K varies significantly by setting. At Low settings, the FPS drops from 155 at 1080p to 83 at 4K, a 46% reduction. At High settings, the drop is from 115 to 47, a 59% reduction. This pattern indicates that at Low settings, the CPU limits performance across all resolutions, as the GPU is not fully taxed. The smaller relative drop at Low (46%) versus High (59%) suggests that the CPU is the bottleneck at 1080p Low, preventing the GPU from achieving higher frame rates that would otherwise be possible.

As settings increase, the GPU becomes more of a limiting factor. The transition from 1440p to 4K at High settings shows a 41% drop (from 79 to 47 FPS), which is consistent with the GPU’s compute load increasing. The data indicates that the RX 7800 XT is the primary limiter at 4K, while the Ryzen 5 4600G is the limiting component at 1080p. This is a classic case of CPU and GPU imbalance, where the system’s performance is determined by the weaker component depending on the resolution and settings. The 16 GB VRAM and 624.1 GB/s bandwidth are sufficient for all tested scenarios, meaning the FPS drops are due to compute and CPU limitations, not memory capacity.