Rust

Best Settings per Resolution

The recorded data for Rust on this AMD Ryzen 5 8400F and Intel Arc B390 combination shows a very narrow playable window. At 3840x2160 (4K), no preset reaches the 60 FPS threshold defined by the database. The highest average frame rate at this resolution is 31 FPS on Low settings, which falls far short of the playable mark. The High preset delivers 18 FPS, Medium 21 FPS, and Ultra drops to 13 FPS. None of these configurations can be recommended for 4K play, as every recorded average sits below the 60 FPS playable threshold.

At 2560x1440 (1440p), the situation improves only marginally. Low settings produce an average of 53 FPS, still below the 60 FPS requirement. Medium averages 35 FPS, High averages 30 FPS, and Ultra averages 23 FPS. The database lists no playable settings for this resolution, meaning the system cannot sustain a consistent 60 FPS experience at any preset. The closest attempt, Low at 53 FPS, is a 7 FPS gap from the target, which is substantial in a survival game where smooth camera movement matters.

At 1920x1080 (1080p), the system finally clears the threshold. Low settings deliver an average of 76 FPS, which is the only playable configuration recorded. Medium falls below at 51 FPS, High at 43 FPS, and Ultra at 33 FPS. The verdict data confirms this: 1080p Low is the sole playable settings combination, with an average of 76 FPS at that preset. For users who prioritize visual fidelity over frame rate, the Medium preset at 51 FPS may be tolerable, but it does not meet the 60 FPS standard.

CPU and GPU Roles

The scaling patterns across resolutions reveal a system that is heavily constrained by the graphics processor. The Intel Arc B390, with its 1,536 shading units and 24 ROPs, produces pixel rate of 60.00 GPixel/s and texture rate of 120.0 GTexel/s. As resolution increases from 1080p to 1440p, the Low preset average drops from 76 FPS to 53 FPS, a 30% reduction. Moving from 1440p to 4K on Low further drops the average to 31 FPS, another 41% reduction. This steep decline with resolution indicates that the GPU is the primary bottleneck, as the rendering load scales directly with pixel count.

The CPU, an AMD Ryzen 5 8400F with 6 cores and 12 threads, shows strong synthetic performance in the database. Its Cinebench R23 multi-core score of 20,851 and single-core score of 2,943 place it in the 77th percentile of all CPUs. The PassMark multi-thread score of 24,389 further confirms its capability. However, in this game, the CPU's potential is not the limiting factor. At 1080p Low, where the GPU load is lowest, the system reaches 76 FPS, but the same preset at 4K drops to 31 FPS. If the CPU were the constraint, frame rates would remain relatively stable across resolutions, which is not the case here.

The gap between presets at the same resolution also points to GPU dominance. At 1080p, the difference between Low and Ultra is 43 FPS (76 versus 33). At 1440p, that gap narrows to 30 FPS (53 versus 23). At 4K, it narrows further to 18 FPS (31 versus 13). This pattern suggests that at higher resolutions, the GPU is so saturated that even lowering settings yields diminishing returns, a classic sign of a graphics-bound scenario. The CPU's role appears secondary, though its 16 MB of L3 cache and 83.2 GB/s memory bandwidth are sufficient to feed the GPU at lower resolutions without introducing significant stutter.

Measured FPS Breakdown

At 3840x2160, the recorded data shows a narrow range of performance. Low settings average 31 FPS with no min or max values recorded. Medium averages 21 FPS, with a minimum of 18 FPS and maximum of 24 FPS. High averages 18 FPS, and Ultra averages 13 FPS. The Medium preset's min-max range of 18 to 24 FPS illustrates how tightly the frame rate is clustered, leaving no headroom for demanding scenes such as large player-built bases or forests.

At 2560x1440, the numbers improve but remain sub-60. Low averages 53 FPS with no min or max values. Medium averages 35 FPS, with a minimum of 30 FPS and maximum of 41 FPS. High averages 30 FPS, and Ultra averages 23 FPS. The Medium range from 30 to 41 FPS shows that even mid-range settings can dip below 30 FPS during heavy moments, which would be noticeable in a game where quick reactions are necessary for PvP encounters.

At 1920x1080, the only playable preset is Low, averaging 76 FPS. Medium averages 51 FPS, with a minimum of 44 FPS and maximum of 59 FPS. High averages 43 FPS, and Ultra averages 33 FPS. The Medium preset's maximum of 59 FPS is just one frame short of the 60 FPS target, meaning that even the closest non-playable setting cannot sustain the required frame rate. The Low preset, with its 76 FPS average, provides a buffer of 16 FPS above the threshold, which should absorb most frame-time spikes in typical gameplay.

Similar Performance Alternatives

The database provides nearest rival comparisons for both components. For the AMD Ryzen 5 8400F, the closest match is the AMD Ryzen 5 7500F with an average score of 24,964, a delta of 0.2% from the 8400F's 25,005 average. This means the 7500F would behave nearly identically in CPU-bound scenarios. The Intel Core i7-11850H scores 24,935 (0.3% delta) and the Intel Core i7-13620H scores 24,911 (0.4% delta). All three rivals fall within half a percentage point of the 8400F, so swapping to any of them would not meaningfully change Rust's frame rates when the CPU is not the bottleneck. The AMD EPYC 9474F scores 25,103, a -0.4% delta, placing it slightly above the 8400F but still within the same performance tier.

For the Intel Arc B390, the rivals are dramatically weaker in the database's hierarchy. The NVIDIA GeForce GT 520MX scores 1,463, which is 1.3% lower than the B390's 1,482 average. The GeForce 800M scores 1,460 (1.5% lower), the GeForce GT 625 OEM scores 1,446 (2.5% lower), and the GeForce GT 710 scores 1,443 (2.7% lower). These deltas are small, meaning the B390 sits at the very bottom of the GPU performance distribution, with a percentile rank of just 9 among all GPUs. In practical terms, users with any of these rival GPUs would see nearly identical Rust performance, all struggling to maintain playable frame rates except at 1080p Low.

The Verdict

This PC can run Rust, but only under strict conditions. The verdict data shows that at 1920x1080, the Low preset is playable with an average of 76 FPS, clearing the 60 FPS threshold by a comfortable margin. This is the only playable configuration in the entire dataset. At 2560x1440, no settings achieve 60 FPS, with the best attempt (Low) averaging 53 FPS. At 3840x2160, the situation is worse, with Low averaging just 31 FPS. The database's playable threshold is 60 FPS, and the verdict lists no playable settings for either 1440p or 4K.

The system's overall rank in the database is 3,312 out of 3,723 combinations, placing it in the bottom 11% of tested hardware for Rust. This low ranking aligns with the GPU's 9th percentile standing among all GPUs. The CPU, ranked in the 77th percentile, is not the issue; the Intel Arc B390 is the limiting factor. For players who accept 1080p Low as their target, this system is functional. For anyone expecting 1440p or 4K play, the data clearly shows this combination will not deliver a smooth experience, and even the Medium preset at 1080p falls short at 51 FPS.

FAQ

Q: What is the best settings preset for 1080p on this system?

A: The only playable preset at 1920x1080 is Low, which achieves an average of 76 FPS. Medium falls short at 51 FPS, High at 43 FPS, and Ultra at 33 FPS.

Q: Can this system run Rust at 1440p?

A: No. The database lists no playable settings at 2560x1440. The best result is Low at 53 FPS, which is below the 60 FPS threshold. Medium averages 35 FPS, High 30 FPS, and Ultra 23 FPS.

Q: How does the Intel Arc B390 compare to its nearest rivals?

A: The B390 averages 1,482 in the database's benchmark. Its closest rival, the NVIDIA GeForce GT 520MX, scores 1,463 (1.3% lower). The GeForce 800M scores 1,460, and the GeForce GT 625 OEM scores 1,446. All are within 3% of the B390's score.

Q: Is the AMD Ryzen 5 8400F a bottleneck for Rust?

A: The data indicates the GPU is the bottleneck, not the CPU. The 8400F ranks in the 77th percentile of all CPUs with a Cinebench R23 multi-core score of 20,851. The frame rates drop sharply as resolution increases, which is characteristic of a GPU-limited scenario.

Q: What average FPS does the Medium preset produce at 1080p?

A: Medium at 1920x1080 averages 51 FPS, with a minimum of 44 FPS and maximum of 59 FPS. The maximum is just one frame below the 60 FPS playable threshold.

Q: What is the system's overall performance rank for Rust?

A: This combination ranks 3,312 out of 3,723 tested hardware combinations, placing it in the bottom 11% of all systems in the database for this game.