Rust

Measured FPS Breakdown

The recorded data for this combination shows a steep performance curve across resolutions and presets. At 3840x2160, the average frame rates are uniformly low: 18 FPS on High, 31 FPS on Low, 21 FPS on Medium, and 13 FPS on Ultra. The Medium preset at 4K is the only one with a complete min/max range recorded, showing 18 FPS minimum and 24 FPS maximum, which indicates tight, consistently low performance. There is no scenario at 4K where this combo approaches playable territory.

Moving to 2560x1440, the situation improves but remains below the 60 FPS threshold across all settings. High averages 30 FPS, Low averages 53 FPS, Medium averages 35 FPS with a min/max of 30/41, and Ultra averages 23 FPS. The jump from 4K to 1440p is substantial, particularly at Low settings, where the average climbs from 31 to 53 FPS, a 71% improvement. However, even the best case at this resolution, Low at 53 FPS, falls short of the playable threshold by a noticeable margin.

At 1920x1080, the data finally shows a playable configuration. Low settings deliver an average of 76 FPS, which clears the 60 FPS threshold with headroom. High averages 43 FPS, Medium averages 51 FPS with a min/max of 44/59, and Ultra averages 33 FPS. The Medium preset at 1080p has a maximum of 59 FPS, just one frame short of the threshold, but its average of 51 FPS confirms it is not consistently playable. Low is the only preset at any resolution that achieves a playable average.

How This Combo Ranks

Within the database of tested combinations for Rust, this pairing of the AMD Ryzen 5 7400F with the Intel Arc B390 ranks 3312 out of 3723 total combos. This places it in the bottom 11% of all tested configurations, a position that reflects the significant GPU bottleneck in this pairing. The CPU itself is far from weak, but the graphics solution holds the system back dramatically.

The rank is consistent with the measured FPS data: the combo can only manage a playable frame rate at 1080p with the lowest preset. Most other tested combinations in the database achieve playable performance across a wider range of settings and resolutions. This rank suggests that users comparing this system to the broader field will find it at the lower end of the performance spectrum, suitable for low-demand scenarios but not for high-refresh or high-resolution play.

The data indicates that the combo's position is not due to a single weak component but rather the interaction between a strong processor and a very limited graphics adapter. The CPU's percentile ranking among all processors is 83rd, meaning it outperforms 83% of CPUs in the database. The GPU, however, sits in the 9th percentile, outperforming only 9% of GPUs. This mismatch creates a system where the processor is ready for more demanding work, but the graphics subsystem cannot deliver it.

CPU and GPU Roles

The performance scaling across resolutions reveals a clear picture: the GPU is the dominant constraint in this system. At 4K, the average FPS across presets ranges from 13 to 31, with even Low settings failing to reach 32 FPS. At 1440p, the range is 23 to 53, and at 1080p, it is 33 to 76. The improvement from 4K to 1080p is roughly 2.4x at Low settings (31 to 76 FPS), which is consistent with a GPU-bound workload where reducing pixel count directly translates to higher frame rates.

The CPU's role becomes more apparent when examining preset scaling at a fixed resolution. At 1080p, moving from Low to Medium reduces the average from 76 to 51 FPS, a 33% drop. From Medium to High, it drops to 43 FPS, and from High to Ultra, it drops to 33 FPS. This scaling pattern shows that while the GPU still limits at 1080p, the processor's capability allows the system to respond to preset changes predictably. The Ryzen 5 7400F, with its 6 cores and 12 threads on the Zen 4 architecture, provides sufficient headroom for the GPU to be the limiting factor at all tested settings.

At 1440p, the same pattern holds: Low at 53 FPS, Medium at 35, High at 30, and Ultra at 23. The consistent drop from Low to Medium (a 34% reduction) mirrors the 1080p behavior, confirming that the GPU is the bottleneck. At 4K, the differences compress: Low at 31, Medium at 21, High at 18, and Ultra at 13. The smaller percentage gaps at 4K, particularly between Medium and High, suggest that the GPU is so saturated that preset changes have diminishing returns.

The verdict from the data is unambiguous: this game cares about the GPU far more than the CPU for this specific pairing. The CPU's high multithreaded scores, such as 21,765 in Cinebench R23 multicore, are irrelevant to the frame rates achieved because the GPU cannot render fast enough to utilize them.

FAQ

Q: Can this combination run Rust at 4K with any settings?

A: No. The highest average at 3840x2160 is 31 FPS on Low settings. Medium averages 21 FPS, High averages 18 FPS, and Ultra averages 13 FPS. None of these approach the 60 FPS playable threshold.

Q: What is the best playable setting at 2560x1440?

A: There is no playable setting at 1440p. The closest is Low at 53 FPS average, which is below the 60 FPS threshold. Medium averages 35 FPS, High averages 30 FPS, and Ultra averages 23 FPS.

Q: Is 1920x1080 with Medium settings playable?

A: No. Medium at 1080p averages 51 FPS with a minimum of 44 and a maximum of 59. The average and minimum both fall below 60 FPS, so it cannot be considered playable.

Q: How does the CPU compare to its nearest rivals?

A: The Ryzen 5 7400F has an average benchmark score of 32,750. Its nearest rival, the Intel Core i5-14600T, scores 32,707, a 0.1% difference. The Intel Core Ultra 7 155H scores 32,697 (0.2% behind), and the AMD Ryzen 7 PRO 6850H scores 32,812 (0.2% ahead). The CPU is well within 1% of these alternatives.

Q: How does the GPU compare to its nearest rivals?

A: The Intel Arc B390 has a 3DMark Steel Nomad DX12 score of 1,482. The NVIDIA GeForce GT 520MX scores 1,463 (1.3% behind), the NVIDIA GeForce 800M scores 1,460 (1.5% behind), the NVIDIA GeForce GT 625 OEM scores 1,446 (2.5% behind), and the NVIDIA GeForce GT 710 scores 1,443 (2.7% behind). All of these are within 3% of the Arc B390.

Q: What is the only configuration that achieves 60 FPS?

A: The only configuration that clears the 60 FPS threshold is 1920x1080 with Low settings, which averages 76 FPS. No other resolution or preset combination in the measured data reaches playable performance.

Best Settings per Resolution

At 3840x2160, no preset achieves playable performance. The best average is 31 FPS at Low settings, but this is far below the 60 FPS threshold. The database records no playable settings for this resolution.

At 2560x1440, the same conclusion applies: no preset reaches 60 FPS. The best average is 53 FPS at Low settings, which is 7 FPS short of the threshold. Medium, High, and Ultra all fall further behind.

At 1920x1080, the only playable preset is Low, which averages 76 FPS. This is the single configuration in the entire measured dataset that meets the playable threshold. Medium comes closest among the other presets at 51 FPS average, but its minimum of 44 FPS confirms it is not suitable for consistent play.

The data shows a clear pattern: this combination is only viable at the lowest settings and resolution. Users targeting higher visual quality will need to accept frame rates well below 60 FPS, or consider alternative hardware.

The Verdict

This system can run Rust, but only in a very narrow configuration. The verdict by resolution is explicit: at 3840x2160, there are no playable settings. At 2560x1440, there are also no playable settings. At 1920x1080, the only playable setting is Low, which delivers an average of 76 FPS.

For users with a 1080p monitor, this combination is usable if they are willing to play at Low settings. The 76 FPS average provides some headroom above the 60 FPS threshold, though it is not a high-refresh experience. At 1440p or 4K, the system falls short of playable performance in every preset, meaning these resolutions should be avoided entirely for this game.

The CPU is not the limiting factor here. The Ryzen 5 7400F, with its strong single-threaded and multithreaded benchmark results, is more than capable of handling Rust's CPU demands. The GPU, however, is fundamentally underpowered for this title. Its 9th percentile ranking among all GPUs in the database, combined with a 3DMark Steel Nomad score of 1,482, places it in the same performance class as decade-old integrated graphics solutions.

In practical terms, this system is a 1080p Low-settings machine for Rust. It will not run the game at higher presets or resolutions, and users should set their expectations accordingly.

Similar Performance Alternatives

Based on the nearest rivals in the database, several CPUs would behave nearly identically to the Ryzen 5 7400F in this context. The Intel Core i5-14600T has an average score of 32,707, which is 0.1% lower than the 7400F's 32,750. The Intel Core Ultra 7 155H scores 32,697, a 0.2% difference. The AMD Ryzen 7 PRO 6850H scores 32,812, which is 0.2% higher. The AMD Ryzen AI 7 PRO 360 scores 32,662, a 0.3% difference. All four rivals are within 0.3% of the 7400F, meaning any of them would produce nearly identical frame rates when paired with the same GPU.

On the GPU side, the Intel Arc B390's nearest rivals are all NVIDIA parts from older generations. The GeForce GT 520MX scores 1,463, a 1.3% difference from the Arc B390's 1,482. The GeForce 800M scores 1,460, a 1.5% difference. The GeForce GT 625 OEM scores 1,446, a 2.5% difference. The GeForce GT 710 scores 1,443, a 2.7% difference. These deltas are small enough that swapping the Arc B390 for any of these would yield nearly the same Rust performance, meaning the playable configuration would remain limited to 1080p Low settings.

For users considering alternative hardware, the database suggests that no GPU in this performance class would meaningfully change the outcome for Rust. The bottleneck is the graphics adapter, and all of these GPU rivals sit in the same low-performance bracket. Upgrading to a higher-tier GPU would be the only way to unlock playable frame rates at higher resolutions or presets, but that falls outside the scope of this analysis. The recorded data shows that this specific CPU and GPU pairing is confined to the lowest tier of playability.