Rust

The AMD Ryzen 5 8400F and NVIDIA GeForce RTX 5090 combination delivers a broad range of performance in Rust, scaling from well over 200 FPS at 1080p Low to a sub-60 FPS result at 4K Ultra. The measured data shows a system that is overwhelmingly GPU-bound at higher resolutions, while the CPU's single-thread capabilities become a more relevant factor at lower settings. This analysis breaks down the measured FPS, component roles, and provides a clear verdict on what this PC can achieve in Rust.

Measured FPS Breakdown

The benchmark results for this combo in Rust are measured across three resolutions and four quality presets, with average FPS figures provided for all scenarios and min/max values for the Medium preset.

At 3840x2160 (4K), the average frame rates are as follows: the Low preset averages 132 FPS, Medium averages 89 FPS with a minimum of 76 and a maximum of 102 FPS, High averages 75 FPS, and the Ultra preset dips to an average of 57 FPS. The data shows a clear and consistent decline as visual fidelity increases, with the spread from Low to Ultra representing a 75 FPS difference. The minimum FPS recorded at Medium (76 FPS) indicates that even in demanding scenes at 4K, the system maintains a frame rate above the 60 FPS threshold.

Moving to 2560x1440 (1440p), the performance scales upward significantly. The Low preset averages 191 FPS, while Medium averages 150 FPS with a minimum of 128 and a maximum of 173 FPS. The High preset reaches an average of 127 FPS, and the Ultra preset maintains a solid 97 FPS average. The frame rate drop from Low to Ultra is 94 FPS, but every preset at this resolution stays comfortably above 60 FPS, with the most demanding setting still nearly hitting triple digits.

At 1920x1080 (1080p), the system's performance is exceptionally high, suggesting the CPU becomes a limiting factor. The Low preset averages 216 FPS, Medium averages 186 FPS with a minimum of 158 and a maximum of 214 FPS, High averages 175 FPS, and Ultra averages 140 FPS. The difference between Low and Ultra is 76 FPS, but the absolute numbers are high enough that the experience is fluid across the board. The min FPS at Medium (158 FPS) is higher than the average FPS for Ultra at 1440p, highlighting the resolution's impact.

The data indicates that the Medium preset is the only one with recorded min/max values, showing a consistent frame time performance with a 26 FPS variance between min and max at 4K, a 45 FPS variance at 1440p, and a 56 FPS variance at 1080p. These numbers suggest that the frame pacing is stable, with the variance increasing as the average frame rate rises, which is typical for CPU-bound scenarios at lower resolutions.

CPU and GPU Roles

The performance scaling across resolutions reveals a clear division of labor between the Ryzen 5 8400F and the RTX 5090. At 4K Ultra, the average FPS drops to 57, which is below the 60 FPS playable threshold. This indicates that the GPU's rendering workload is the primary constraint, as the massive pixel count demands more from the graphics card than the CPU can feed it. The 4K Low preset at 132 FPS versus the 4K Ultra at 57 FPS demonstrates a 75 FPS swing, which is directly attributable to the GPU's workload.

At 1440p, the system shows a more balanced profile. The Ultra preset averages 97 FPS, which is a 40 FPS improvement over the 4K Ultra result. This improvement suggests that reducing the pixel count from 4K to 1440p relieves significant pressure from the GPU, allowing the CPU to keep up more effectively. The 1440p Low preset at 191 FPS is 59 FPS higher than the 4K Low result, confirming that the GPU is still a major factor even at lower settings, but the CPU's role becomes more prominent as the resolution drops.

The 1080p results point to a CPU-bound scenario at lower presets. The Low preset averages 216 FPS, which is only 25 FPS higher than the 1440p Low result of 191 FPS. This smaller scaling factor, compared to the jump from 4K to 1440p, suggests that the Ryzen 5 8400F is nearing its maximum frame delivery capability. The difference between 1080p Low (216 FPS) and 1080p Ultra (140 FPS) is 76 FPS, which is a smaller absolute gap than the 94 FPS difference seen at 1440p, further supporting the idea that CPU limitations are capping the maximum achievable frame rate at 1080p.

The Ryzen 5 8400F, with its 6 cores and 12 threads, has a single-thread benchmark score of 951 in 3dmark, which is a key metric for Rust's game logic. The data shows that at 1080p, the system cannot scale performance linearly with the GPU's capabilities, as the RTX 5090 is more than capable of rendering frames much faster than the CPU can issue draw calls. At 4K, the GPU becomes the bottleneck, as the RTX 5090's raw compute is taxed by the higher resolution, while the CPU has more headroom to keep up.

Similar Performance Alternatives

The nearest rivals for the CPU and GPU provide context for what other hardware would deliver similar performance in this combination. For the AMD Ryzen 5 8400F, the closest alternatives are the AMD Ryzen 5 7500F, which has an average benchmark score of 24964 and a delta of 0.2%, and the Intel Core i7-11850H, with a score of 24935 and a delta of 0.3%. These CPUs would likely produce nearly identical frame rates in Rust, as their average scores are within 0.4% of the 8400F's 25005 average. The Intel Core i7-13620H (24911, delta 0.4%) and AMD EPYC 9474F (25103, delta -0.4%) also fall within a tight performance envelope, meaning any of these processors would behave similarly when paired with the RTX 5090.

For the NVIDIA GeForce RTX 5090, the nearest rivals are the NVIDIA Tesla P100 PCIe 16 GB, which has an average score of 79605 and a delta of 0.3%, and the NVIDIA Tesla P100 PCIe 12 GB, with a score of 79396 and a delta of 0.6%. The AMD Radeon RX 6850M XT (78940, delta 1.1%) and AMD Radeon Pro Vega 64X (80959, delta -1.4%) are also listed as close competitors. These GPUs would likely deliver similar FPS in Rust, though the Tesla P100 and Radeon Pro cards are professional-grade products with different driver optimizations for gaming. The RTX 5090's percentile rank of 92.0% against all GPUs indicates it is in the top tier, but the deltaPct values show that the nearest rivals are within a 1.4% performance band, suggesting that swapping the GPU for one of these alternatives would not significantly change the measured FPS in Rust.

FAQ

Q: Can this PC run Rust at 4K with all settings maxed out?

A: No, the Ultra preset at 3840x2160 averages 57 FPS, which falls below the 60 FPS playable threshold. The best playable setting at 4K is High, which averages 75 FPS.

Q: What is the highest average FPS this combination can achieve?

A: The highest measured average FPS is 216, which occurs at 1920x1080 with the Low preset. This is the maximum frame rate recorded across all tested resolutions and settings.

Q: How does the CPU affect performance at lower resolutions?

A: At 1080p, the scaling from Low (216 FPS) to Ultra (140 FPS) suggests the Ryzen 5 8400F becomes a limiting factor. The single-thread score of 951 in 3dmark indicates the CPU can deliver high frame rates, but it caps the maximum FPS below what the GPU could theoretically produce.

Q: Is the RTX 5090 the bottleneck at 4K?

A: Yes, the data indicates the GPU is the primary constraint at 3840x2160. The Ultra preset drops to 57 FPS, while the Low preset achieves 132 FPS, showing a 75 FPS difference that is driven by the GPU's rendering workload at higher settings.

Q: What frame rates can I expect with the Medium preset?

A: At 1080p Medium, the average is 186 FPS with a minimum of 158 and a maximum of 214 FPS. At 1440p Medium, the average is 150 FPS with a minimum of 128 and a maximum of 173 FPS. At 4K Medium, the average is 89 FPS with a minimum of 76 and a maximum of 102 FPS.

Q: Does the system maintain 60 FPS in all scenarios?

A: No, the only scenario that falls below 60 FPS is the 4K Ultra preset, which averages 57 FPS. All other tested preset and resolution combinations achieve an average frame rate above 60 FPS.

How This Combo Ranks

Among the tested combinations in the database, this pairing of the AMD Ryzen 5 8400F and NVIDIA GeForce RTX 5090 ranks at position 136 out of 3723 total combos for Rust. This places the system in the top 3.7% of all tested configurations, indicating that it outperforms the vast majority of systems in this game. The rank reflects the combination's ability to maintain high frame rates across most resolutions, with the 4K Ultra preset being the only notable weakness. The high ranking is primarily driven by the RTX 5090's exceptional performance, as the GPU's 92.0% percentile rank against all GPUs is a stronger factor than the CPU's 77.0% percentile rank against all CPUs. The CPU's average benchmark score of 25005 is respectable, but the GPU's average score of 79842 is the dominant contributor to this high overall rank.

Best Settings per Resolution

The data provides clear guidance on the most demanding preset that maintains at least 60 FPS average at each resolution.

At 3840x2160, the High preset is the most demanding playable option, achieving an average of 75 FPS. The Ultra preset falls short at 57 FPS, so High is the recommended maximum. The Medium preset offers a higher 89 FPS average for those who prefer smoother motion, but High is the best visual quality that stays above the threshold.

At 2560x1440, all four presets are playable, and the Ultra preset is the best choice, averaging 97 FPS. This provides maximum visual fidelity while maintaining a comfortable margin above 60 FPS. The High preset at 127 FPS and Medium at 150 FPS are alternatives for higher refresh rate displays.

At 1920x1080, the Ultra preset is also the best playable option, with an average of 140 FPS. This allows for full visual quality at a frame rate that exceeds the 60 FPS threshold by a significant margin. The Low preset at 216 FPS is available for competitive play, but Ultra offers the best balance of quality and speed.

The Verdict

The AMD Ryzen 5 8400F with the NVIDIA GeForce RTX 5090 can run Rust, with the verdict depending on the target resolution and settings. At 3840x2160, the system is playable at High, Medium, and Low presets, with High being the best playable setting at 75 FPS average. The Ultra preset at 57 FPS is the only configuration that fails the 60 FPS threshold, making it unsuitable for a smooth experience. At 2560x1440, the system is playable at all four presets, with Ultra delivering a 97 FPS average, which is the best playable setting. At 1920x1080, all presets are playable, with Ultra averaging 140 FPS, providing an excellent experience for both visual quality and frame rate. The data shows that this combination is capable of running Rust at high frame rates in most scenarios, with the only limitation being 4K Ultra settings, which require a reduction to High or lower to maintain 60 FPS.