Rust

The Intel Core i5-9400 paired with the NVIDIA GeForce RTX 3070 Ti is a combination that leans heavily on the graphics card for gaming performance. In Rust, the recorded data shows a wide range of outcomes depending on resolution and quality settings, from a smooth 142 FPS at 1080p Low to a stutter-prone 34 FPS at 4K Ultra. This analysis breaks down the measured frame rates, compares the hardware to nearby alternatives, and provides clear guidance on what settings to use for a playable experience.

Measured FPS Breakdown

The database contains measured FPS for this combo across three resolutions and four quality presets. At 1920x1080, the results are strong across the board. Low settings produce an average of 142 FPS, which is the highest recorded value for this configuration. Medium settings average 122 FPS, with a minimum of 104 FPS and a maximum of 140 FPS. High settings average 110 FPS, and even Ultra settings stay comfortably above the 60 FPS threshold with an average of 84 FPS. At 1080p, this hardware never dips below the playable mark, and the minimum recorded value at Medium (104 FPS) is still far above what most players would consider acceptable.

Moving to 2560x1440, the performance remains solid but the headroom shrinks. Low settings average 125 FPS, Medium averages 90 FPS with a minimum of 76 FPS and a maximum of 103 FPS, and High averages 76 FPS. The Ultra preset at 1440p drops to an average of 58 FPS, which falls just short of the 60 FPS playable threshold. The data shows that 1440p High is the most demanding preset that still clears 60 FPS, while Ultra requires a compromise in fluidity.

At 3840x2160, the picture changes dramatically. Low settings average 79 FPS, which is playable, but Medium drops to an average of 53 FPS with a minimum of 45 FPS and a maximum of 61 FPS. High settings average 45 FPS, and Ultra averages only 34 FPS. The 4K results indicate that this combination is not suited for high or ultra quality at that resolution, as the frame rates fall well below the playable threshold. The gap between Low and Medium at 4K is substantial: a 26 FPS difference in average frame rate, which suggests that the GPU is heavily taxed by the higher preset.

Across all resolutions, the pattern is clear. The RTX 3070 Ti provides excellent raw performance at 1080p and good performance at 1440p, but 4K is only viable on the lowest settings. The i5-9400, with its six cores and six threads, does not appear to bottleneck the GPU at lower resolutions, as the 1080p Low result of 142 FPS indicates the CPU can feed frames fast enough. However, at 4K Ultra, the combination produces just 34 FPS, which is a 76% reduction compared to 1080p Low, showing that the GPU becomes the limiting factor at higher resolutions and settings.

Similar Performance Alternatives

The database places the Intel Core i5-9400 at the 47th percentile among all CPUs, with an average benchmark score of 2254. Its nearest rivals are all within a fraction of a percent in performance. The Intel Core i7-1068NG7 scores 2259, which is 0.2% higher, meaning the two chips are effectively identical in compute capability. The Intel Core i7-10710U scores 2248, 0.3% lower, and the AMD Ryzen 5 PRO 1500 scores 2246, 0.4% lower. The Intel Core i3-10305 scores 2264, 0.4% higher. For gaming in Rust, any of these CPUs would behave nearly the same as the i5-9400. The differences are negligible, so if a user has one of these processors, the FPS numbers reported here would be essentially unchanged.

On the GPU side, the RTX 3070 Ti sits at the 75th percentile among all GPUs, with an average benchmark score of 29945. Its nearest rivals include the NVIDIA GeForce RTX 5070 Mobile, which scores 29928, only 0.1% lower. The AMD Radeon RX 6800 scores 30095, which is 0.5% higher, and the NVIDIA GeForce RTX 2080 Ti scores 29783, 0.5% lower. The AMD Radeon RX 6700 scores 30433, 1.6% higher. These deltas are small, so swapping the RTX 3070 Ti for any of these cards would produce very similar frame rates in Rust. The RX 6800 and RX 6700 are the closest AMD alternatives, while the RTX 2080 Ti represents the previous generation NVIDIA option that still matches up well.

For this specific combo, the CPU and GPU pair together in a way where the GPU dominates performance in Rust. The CPU rivals are all within 0.4% of each other, meaning the i5-9400 is not a unique bottleneck or advantage. The GPU rivals are within 1.6%, so the RTX 3070 Ti is at the center of a tight performance cluster. Users with any of these alternative parts should expect nearly identical behavior in Rust, with the caveat that the GPU choice matters more than the CPU at higher resolutions.

How This Combo Ranks

The database ranks this combination at 1625 out of 3723 tested combos for Rust. That places it in the 44th percentile of all tested systems, meaning roughly 56% of the combos in the database perform better. This ranking reflects the fact that the i5-9400 is a mid-range CPU from 2018, while the RTX 3070 Ti is a high-end GPU from 2021. The pairing is unbalanced in favor of the GPU, which is why the combo ranks below many systems with newer CPUs and similar or slower GPUs.

The rank of 1625 out of 3723 is not a poor result. It indicates that this system is above the median in overall capability, but it is not in the top tier. In Rust specifically, the game is known for being CPU-heavy in certain scenarios, and the i5-9400's six threads may hold back the RTX 3070 Ti in areas with many players or complex bases. However, the measured FPS data shows that at 1080p and 1440p, the combo still delivers playable frame rates at most presets. The ranking should be interpreted as a general indicator: this system is a solid mid-range performer, but it will not compete with modern high-end CPUs paired with the same GPU.

The data also shows that the GPU alone ranks at the 75th percentile, while the CPU ranks at the 47th percentile. This gap suggests that the CPU is the weaker link in the combo. If a user were to upgrade the CPU to a newer model, the combo rank in Rust would likely improve, assuming the GPU remains the same. But for the purposes of this analysis, the recorded FPS values are what they are, and they show playable performance at 1080p and 1440p with adjusted settings.

The Verdict

The verdict by resolution is straightforward. At 1920x1080, all four presets (Low, Medium, High, Ultra) are playable, since the lowest average FPS among them is 84 FPS at Ultra. The best settings at 1080p are Ultra, which yields an average of 84 FPS. At 2560x1440, the playable settings are High, Low, and Medium. The Ultra preset falls short at 58 FPS, so it is not recommended. The best settings at 1440p are High, with an average of 76 FPS. At 3840x2160, only Low is playable, with an average of 79 FPS. Medium, High, and Ultra all produce averages below 60 FPS, so they should be avoided. The best settings at 4K are Low, with an average of 79 FPS.

This system can run Rust, and it can run it well at 1080p and 1440p. At 1080p, a user can max out the settings and still get 84 FPS on average, which is smooth for a survival game with frequent combat. At 1440p, High settings provide 76 FPS, which is also smooth, but Ultra is not viable. At 4K, the system is limited to Low settings for a playable experience, and even then, the average of 79 FPS is acceptable but not ideal. For most players, 1440p High is the sweet spot, offering a good balance of visual quality and performance. For those with a 1080p monitor, the Ultra preset is the clear choice.

The playable threshold is defined as 60 FPS in the database. Every preset that meets or exceeds this average is considered playable. The data shows that this combo clears 60 FPS at 1080p for all presets, at 1440p for three out of four presets, and at 4K for only one out of four presets. Users should prioritize their resolution and then choose the highest preset that stays above 60 FPS.

FAQ

Q: Can this PC run Rust at 1080p with maximum settings?

A: Yes. At 1920x1080 with Ultra settings, the measured average FPS is 84, which is well above the 60 FPS playable threshold. All four presets at 1080p are playable.

Q: What is the best preset for 1440p?

A: High settings are the best choice at 2560x1440, producing an average of 76 FPS. The Ultra preset drops to 58 FPS, which is below the playable threshold, so it is not recommended.

Q: Is 4K gaming possible with this hardware?

A: Yes, but only on Low settings. At 3840x2160 Low, the average FPS is 79. Medium, High, and Ultra all fall below 60 FPS, with averages of 53, 45, and 34 FPS respectively.

Q: How does the RTX 3070 Ti compare to its closest rivals?

A: The RTX 3070 Ti has an average benchmark score of 29945. The NVIDIA GeForce RTX 5070 Mobile is 0.1% lower, the AMD Radeon RX 6800 is 0.5% higher, the NVIDIA GeForce RTX 2080 Ti is 0.5% lower, and the AMD Radeon RX 6700 is 1.6% higher. These differences are minor.

Q: Will the Intel Core i5-9400 bottleneck the RTX 3070 Ti in Rust?

A: The data shows that at 1080p Low, the combo achieves 142 FPS, which indicates the CPU can keep up with the GPU at lower settings. However, the CPU ranks at the 47th percentile, while the GPU ranks at the 75th percentile, suggesting the CPU is the weaker component. At higher resolutions, the GPU becomes the limiting factor.

Q: What is the lowest FPS recorded for this combo?

A: The lowest average FPS is 34 at 3840x2160 Ultra. The lowest minimum FPS recorded is 45 at 3840x2160 Medium. At 1440p Medium, the minimum is 76 FPS, and at 1080p Medium, the minimum is 104 FPS.

Best Settings per Resolution

For 1920x1080, the most demanding preset that stays at or above 60 FPS is Ultra, with an average FPS of 84. This is the recommended choice for 1080p users, as it provides the highest visual quality without sacrificing playability.

For 2560x1440, the most demanding preset that stays at or above 60 FPS is High, with an average FPS of 76. The Ultra preset falls short at 58 FPS, so High is the highest playable setting.

For 3840x2160, the most demanding preset that stays at or above 60 FPS is Low, with an average FPS of 79. All other presets at 4K are below 60 FPS, so Low is the only viable option.

These recommendations are based on the average FPS data. The minimum FPS values are only recorded for the Medium presets, and they show that even at 4K Medium, the minimum is 45 FPS, which can cause noticeable stutters. For the presets without recorded minimums, the average FPS is the only metric available, but it provides a reliable indicator of overall performance. Users who prioritize smoothness over visuals should consider dropping one preset level from the recommendations above, especially at 1440p and 4K, where the margin above 60 FPS is thinner.