Rust

The AMD Ryzen 5 8400F paired with the NVIDIA GeForce RTX 4080 SUPER delivers a robust 1080p and 1440p experience in Rust, with 4K remaining viable at high settings. The data shows a system that scales predictably across resolutions, with the GPU's considerable power being the primary driver of frame rates. This analysis breaks down the measured performance, optimal settings, and how this specific combination of components stacks up against the broader benchmark database.

Measured FPS Breakdown

The measured FPS data for this combo in Rust is provided for three resolutions and four quality presets, offering a clear picture of performance scaling. At 1920x1080, the system is overwhelmingly powerful. The Low preset yields an average of 215 FPS, which is the highest frame rate recorded across all tested configurations. Moving to Medium reduces the average to 184.5 FPS, a drop of roughly 14% from Low. The High preset produces an average of 164.8 FPS, and the most demanding Ultra preset still maintains a very high average of 121 FPS. The scaling at 1080p shows a smooth, linear progression, indicating that the CPU and GPU combination has ample headroom to handle even the most intensive settings without falling below a playable threshold.

At 2560x1440, the performance remains exceptionally strong, though the impact of increased resolution is evident. The Low preset averages 191.7 FPS, a decrease from the 1080p Low result. Medium follows with 134.2 FPS, and High with 114.2 FPS. The Ultra preset, which was the most demanding at 1080p, still achieves an average of 87 FPS at 1440p. The frame rate deltas between presets are larger at this resolution, suggesting that the GPU is becoming a more significant factor as the pixel count increases.

At 3840x2160 (4K), the system's limits begin to show, but it remains a capable 4K machine for this title. The Low preset averages 116.1 FPS, which is a substantial drop from the 1440p Low result but still very playable. The Medium preset drops to 77.6 FPS, and High to 64.3 FPS. The Ultra preset at 4K is the only configuration that falls below the 60 FPS playable threshold, with an average of 50.8 FPS. This data indicates that while the RTX 4080 SUPER is powerful, the demands of 4K Ultra in Rust are too high for a consistent 60+ FPS experience with this CPU.

Best Settings per Resolution

The "best settings" are defined as the most demanding preset that still maintains an average FPS at or above the 60 FPS playable threshold. The data reveals a clear pattern across the three resolutions.

For 1920x1080, the system can handle the Ultra preset without issue, achieving an average of 121 FPS. This is the highest quality option and provides a significant performance buffer, meaning the system is not stressed to its limits. The benchmark results indicate that at 1080p, the user can max out all settings and still enjoy a very smooth experience.

At 2560x1440, the Ultra preset is also the optimal choice, with an average of 87 FPS. While this is lower than the 1080p result, it remains well above the 60 FPS threshold, providing a comfortable margin for demanding scenes. This makes 1440p Ultra the sweet spot for this hardware, balancing high visual fidelity with excellent performance.

For 3840x2160, the situation changes. The Ultra preset falls short at 50.8 FPS, failing to meet the playable threshold. The most demanding preset that stays at or above 60 FPS is High, which achieves an average of 64.3 FPS. This is a very close margin, but the data confirms that 4K High is the highest playable setting. The performance drop from High to Ultra at 4K is steep, representing a 21% decrease in average FPS, which highlights the extreme cost of the Ultra preset at this resolution.

CPU and GPU Roles

The measured FPS data across resolutions and presets provides insight into the roles of the Ryzen 5 8400F and the RTX 4080 SUPER in Rust. The game appears to be heavily GPU-bound at higher resolutions, while the CPU's influence is more noticeable at lower resolutions and higher frame rates.

The scaling from 1080p to 1440p shows a significant performance hit across all presets. For example, the Ultra preset drops from 121 FPS at 1080p to 87 FPS at 1440p, a reduction of 28%. This substantial decrease indicates that the GPU is the limiting factor as the pixel count increases. The RTX 4080 SUPER is being tasked with rendering more pixels, and its performance scales accordingly. The CPU, with its 6 cores and 12 threads, is likely not the bottleneck at these higher resolutions.

The scaling from 1440p to 4K is even more dramatic. The High preset drops from 114.2 FPS at 1440p to 64.3 FPS at 4K, a 44% reduction. This further confirms that the GPU is the dominant component in determining frame rates at 4K. The CPU's role becomes less critical as the resolution increases, as the GPU's rendering workload becomes the primary constraint. The data suggests that at 1080p, the CPU is more involved, as the frame rates are high enough that the CPU's capabilities can influence the final output, but at 4K, the GPU's raw pixel throughput is the sole deciding factor.

The difference between presets at a single resolution also points to GPU dependency. At 1440p, the jump from Low to Ultra results in a 55% decrease in FPS (from 191.7 to 87). This large variance is a classic sign of a GPU-bound scenario, where increasing the quality settings directly increases the GPU's workload. The CPU's performance is relatively constant across these presets, so the frame rate fluctuations are almost entirely attributable to the graphics card.

FAQ

Q: Can this PC run Rust at 4K with high settings?

A: Yes. The data shows an average of 64.3 FPS at 3840x2160 with the High preset, which is above the 60 FPS playable threshold.

Q: What is the highest preset that stays above 60 FPS at 2560x1440?

A: The Ultra preset achieves an average of 87 FPS at 2560x1440, making it the most demanding playable option at that resolution.

Q: How much performance is lost when moving from 1080p to 4K on the Ultra preset?

A: The average FPS for the Ultra preset drops from 121 at 1920x1080 to 50.8 at 3840x2160, a significant reduction of about 58%.

Q: Is the CPU or GPU more important for this game at 4K?

A: The data suggests the GPU is the primary factor. The large FPS drops when increasing resolution indicate the RTX 4080 SUPER's rendering workload is the main bottleneck, while the CPU's role diminishes at higher pixel counts.

Q: Does this system ever drop below 60 FPS?

A: Yes. The only configuration that falls below the 60 FPS threshold is 3840x2160 with the Ultra preset, which averages 50.8 FPS. All other tested settings and resolution combinations stay above 60 FPS.

How This Combo Ranks

Within the benchmark database, this specific combination of the AMD Ryzen 5 8400F and NVIDIA GeForce RTX 4080 SUPER ranks 277th out of 3723 tested combos for Rust. This places it in the top 7.4% of all systems tested, indicating that it is a high-performance configuration. The ranking reflects the strength of the RTX 4080 SUPER, which is a top-tier GPU, paired with a solid mid-range CPU. The data shows that this combo outperforms the vast majority of systems in the database, making it a formidable choice for playing Rust. The high rank is consistent with the measured FPS results, which show excellent performance at all resolutions except for the most extreme 4K Ultra setting.

The Verdict

The verdict from the measured data is clear: this PC can run Rust exceptionally well. At 1920x1080, the system can run the Ultra preset at an average of 121 FPS, providing a flawless experience. At 2560x1440, the Ultra preset is also playable, with an average of 87 FPS, offering a great balance of visual quality and speed. At 3840x2160, the system is still highly capable, with the High preset averaging 64.3 FPS, which clears the 60 FPS threshold. The only scenario where the system fails to maintain 60 FPS is at 4K with the Ultra preset, which averages 50.8 FPS. In summary, this combo is a strong performer for Rust, capable of delivering high refresh rate gameplay at 1080p and 1440p, and solid 4K gaming at high settings.

Similar Performance Alternatives

The nearestRivals data provides context on which other CPUs and GPUs would perform at a similar level. For the AMD Ryzen 5 8400F, the closest rivals are the AMD Ryzen 5 7500F (with a score delta of 0.2%), the Intel Core i7-11850H (delta 0.3%), and the Intel Core i7-13620H (delta 0.4%). These processors have average benchmark scores that are nearly identical to the 8400F, meaning that a system built with any of these CPUs would likely deliver very similar frame rates in Rust when paired with the same GPU. The AMD EPYC 9474F is also a rival, with a delta of -0.4%, indicating it is slightly faster on average, but the difference is marginal.

For the NVIDIA GeForce RTX 4080 SUPER, the closest rival is the NVIDIA GeForce RTX 4080, with a delta of -0.1%. This is an expected result, as the SUPER variant is a minor refresh of the original. The AMD Radeon Pro W5700X is also close, with a delta of -1.1%, and the AMD Radeon RX 6750 GRE 12 GB (delta -2.7%) and AMD Radeon 8060S (delta -2.8%) are slightly further behind. In practice, a system with an RTX 4080 would perform almost identically to one with the RTX 4080 SUPER. The other rival GPUs would offer slightly lower performance, but still within a small margin. Combining any of the rival CPUs with any of the rival GPUs would produce a system that is broadly comparable to the tested configuration in Rust.