Rust

The Intel Core i5-11400F and NVIDIA GeForce RTX 3080 Ti pairing delivers a clear split in Rust: at 1080p and 1440p the combination is strongly GPU-bound at lower presets, while 4K Ultra exposes the limits of both components. With the CPU holding a 75th percentile standing among all tested processors and the GPU at the 83rd percentile, this combo ranks 463rd out of 1,717 tested configurations in Rust specifically. The data shows a system that can push very high frame rates at mainstream resolutions but requires settings discipline to stay smooth at 4K.

CPU Role — cores, clocks, and how they relate to this game's results

The Intel Core i5-11400F brings 6 cores and 12 threads, with a base clock of 2.60 GHz and a boost clock of 4.40 GHz. This is a Rocket Lake part on the Intel Socket 1200 platform, built on a 14 nm process with a 65 W TDP. Its cache layout includes 80 KB of L1 per core, 512 KB of L2 per core, and 12 MB of shared L3 cache. Memory support is DDR4 over a dual-channel bus, with a memory bandwidth of 51.2 GB/s.

For Rust, which is known to be sensitive to single-thread performance and memory latency, this CPU’s boost clock of 4.40 GHz is the key asset. The benchmark data supports that: in 3DMark single-thread testing the chip scores 868, and in Cinebench R23 single-core it reaches 2,029. Those numbers place it in the upper midrange of desktop CPUs, and the 75th percentile vs all CPUs confirms that it outpaces roughly three-quarters of the tested field. The multi-threaded results are also respectable — Cinebench R23 multicore hits 14,372, and Geekbench multicore lands at 7,579 — but Rust’s engine does not scale linearly with core count, so the 6-core/12-thread layout is sufficient without being overkill.

The nearest rivals in aggregate benchmark score are telling. The AMD Ryzen 7 5700U scores 17,189 (0% delta), the Intel Core i7-1260P scores 17,212 (-0.2%), and the Intel Core Ultra 7 164U scores 17,215 (-0.2%). The i5-11400F’s average benchmark score of 17,181 is essentially tied with these mobile and low-power parts, which underscores that this desktop chip’s advantage lies in sustained clocks rather than raw throughput. In Rust, that sustained boost behavior matters more than peak multi-core scores, because the game’s simulation and entity updates tend to hammer one or two threads heavily.

The practical implication for this pairing: at 1080p Low, the CPU is not the bottleneck — the 173.7 FPS average suggests the RTX 3080 Ti is doing most of the work. But at 4K Ultra, where the average drops to 37.4 FPS, the CPU’s 12 threads and 4.40 GHz boost are still adequate; the GPU is clearly the limiting factor there. Between those extremes, the CPU holds its own. The data does not show any scenario where the i5-11400F becomes a severe constraint in Rust, which is a positive sign for a mid-generation desktop part.

GPU Role — VRAM, clocks, and how they relate to this game's results

The NVIDIA GeForce RTX 3080 Ti is built on the GA102 chip using Ampere architecture, manufactured on an 8 nm process by Samsung. It packs 28,300 million transistors on a 628 mm² die, with 10,240 shading units, 320 TMUs, and 112 ROPs. The memory subsystem is a 12 GB GDDR6X pool on a 384-bit bus, providing 912.4 GB/s of bandwidth. Clocks are set at a 1365 MHz base and 1665 MHz boost, with memory running at 1188 MHz (19 Gbps effective).

In Rust, this GPU’s strengths and weaknesses are well illustrated by the measured FPS rows. At 1080p Low, the card averages 173.7 FPS, which is nearly double the 4K High result of 54.5 FPS. The 12 GB VRAM is ample for Rust at any tested setting, as the game’s textures and draw distances do not appear to exceed that capacity in any row. The 384-bit bus and 912.4 GB/s bandwidth help at higher resolutions, where the 4K Medium result of 62.3 FPS shows the card can still hold playable rates when settings are moderated.

The GPU’s benchmark profile reinforces its position. In 3DMark Steel Nomad DX12 it scores 5,077, and in Passmark G3D it reaches 26,896. The Geekbench OpenCL score of 191,309 and Vulkan score of 171,798 indicate strong compute and API-level performance. The nearest rivals in aggregate score are the RTX 3090 at 41,441 (-0.5%), the AMD Radeon Pro 5300 at 41,610 (-0.9%), and the RTX 5070 at 41,687 (-1.1%). The RTX 3080 Ti’s average benchmark score of 41,224 is essentially neck-and-neck with these parts, meaning it sits at the top tier of GPUs from its generation.

The 83rd percentile vs all GPUs is a strong showing, and it aligns with the measured FPS: this card never falls below 37.4 FPS in any tested configuration, and at 1080p it exceeds 96.9 FPS even on Ultra. The 350 W TDP and suggested 750 W PSU are worth noting for builders, but the performance data shows a card that is clearly capable of running Rust at high refresh rates on 1440p monitors without breaking a sweat.

FAQ

Q: Can this combo run Rust at 4K with playable frame rates?

A: Yes, but only at lower presets. At 4K Low the average FPS is 94, at Medium it drops to 62.3, at High it falls to 54.5, and at Ultra it hits 37.4. For a smooth 4K experience, Low or Medium settings are the realistic choices.

Q: What is the best resolution for high refresh rate play?

A: The data shows 1080p Low at 173.7 FPS and 1440p Low at 154.7 FPS are the only configurations that exceed 150 FPS. At 1080p Medium the average is 147.5 FPS, which is also above typical 144 Hz monitor refresh rates.

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

A: The i5-11400F has an average benchmark score of 17,181, which is 0% delta from the AMD Ryzen 7 5700U (17,189), -0.2% from the Intel Core i7-1260P (17,212), and -0.2% from the Intel Core Ultra 7 164U (17,215). These are essentially equivalent scores, so any performance differences in Rust would come from clock behavior rather than raw throughput.

Q: Is the RTX 3080 Ti’s 12 GB VRAM enough for Rust at Ultra settings?

A: The measured data does not indicate any VRAM-related issues. At 4K Ultra the average FPS is 37.4, which is a GPU compute limit rather than a memory capacity problem. At 1440p Ultra the average is 67 FPS, and at 1080p Ultra it is 96.9 FPS, all without any reported stutters or failures.

Q: What is the GPU’s standing among all tested graphics cards?

A: The RTX 3080 Ti sits at the 83rd percentile vs all GPUs, with an average benchmark score of 41,224. Its nearest rivals are the RTX 3090 (41,441, -0.5%), AMD Radeon Pro 5300 (41,610, -0.9%), and RTX 5070 (41,687, -1.1%).

Q: Should I prioritize CPU or GPU upgrades for this system in Rust?

A: The measured data shows the GPU is the limiting factor at 4K and at high presets, while the CPU is adequate at all settings. For example, 1080p Low yields 173.7 FPS, which suggests the CPU can feed the GPU sufficiently. Upgrading the GPU would help 4K performance, while a CPU upgrade would offer little benefit in the tested rows.

Measured FPS Breakdown — resolution by resolution, settings by settings, exact numbers

At 3840x2160 (4K), the RTX 3080 Ti and i5-11400F produce a wide spread depending on settings. Low averages 94 FPS, Medium 62.3 FPS, High 54.5 FPS, and Ultra 37.4 FPS. The gap between Low and Ultra is 56.6 FPS, which is substantial and indicates that 4K requires careful preset selection to maintain fluid motion.

At 2560x1440 (1440p), the results are much healthier. Low hits 154.7 FPS, Medium 102.6 FPS, High 89.2 FPS, and Ultra 67 FPS. The step from Low to Medium costs 52.1 FPS, while the jump from High to Ultra costs 22.2 FPS. For a 144 Hz monitor, Low is the only preset that fully saturates the refresh rate, though Medium and High remain very playable.

At 1920x1080 (1080p), the combo shows its strongest performance. Low averages 173.7 FPS, Medium 147.5 FPS, High 130 FPS, and Ultra 96.9 FPS. Even at Ultra, the frame rate stays above 90, which is excellent for a game like Rust where large bases and multiple players can cause frame dips. The scaling from Low to Ultra is 76.8 FPS, showing that the GPU has headroom at this resolution.

Comparing across resolutions at the same preset, the pattern is consistent: 1080p Low (173.7 FPS) is 11% faster than 1440p Low (154.7 FPS) and 84.8% faster than 4K Low (94 FPS). At Ultra, 1080p (96.9 FPS) is 44.6% faster than 1440p (67 FPS) and 159% faster than 4K (37.4 FPS). These deltas confirm that resolution scaling is steep for this GPU in Rust, with 4K being the only resolution where the card struggles to maintain high frame rates.

How This Combo Ranks — use comboRankInGame vs other tested combos

This specific pairing of the Intel Core i5-11400F and NVIDIA GeForce RTX 3080 Ti ranks 463rd out of 1,717 tested combos in Rust. That places it in the top 27% of all configurations, which is a solid result given that the CPU is a mid-range desktop part and the GPU is a high-end but previous-generation card. The rank is driven primarily by the GPU’s 83rd percentile standing, while the CPU’s 75th percentile is slightly lower but not a drag in this game.

The nearest rivals for the CPU (AMD Ryzen 7 5700U, Intel Core i7-1260P, Intel Core Ultra 7 164U) all have nearly identical aggregate scores, but none of those are paired with an RTX 3080 Ti in this dataset. The GPU’s nearest rivals (RTX 3090, Radeon Pro 5300, RTX 5070) are also close in aggregate score, with deltas under 1.6%. In practice, this means the combo’s rank is more about the GPU than the CPU, and any system with a similar-tier graphics card would likely land in the same general ranking bracket.

For context, being in the 463rd position out of 1,717 means there are roughly 1,250 combos that rank lower. This is not a top-100 system, but it is clearly above the median for Rust performance. The measured FPS data supports this: even at 4K Ultra, the combo produces 37.4 FPS, which is playable for a survival game where reaction speed matters less than in competitive shooters. At 1440p High, the 89.2 FPS average is smooth, and at 1080p Medium the 147.5 FPS is more than enough for any display.

Settings Recommendations — which preset gives the best experience per the measured rows

For a 1080p monitor with a 144 Hz refresh rate, the Medium preset at 147.5 FPS is the best balance of visual quality and performance. High at 130 FPS is also viable, but Medium provides more headroom for frame drops during heavy base-building or combat scenes. Ultra at 96.9 FPS is acceptable if you prioritize image quality, but it sacrifices 50.6 FPS compared to Low.

For a 1440p monitor, Medium at 102.6 FPS is the recommended starting point. It clears the 100 FPS threshold and looks noticeably better than Low, while High at 89.2 FPS is still fluid for most players. Ultra at 67 FPS is playable but leaves little margin for the frame dips that Rust’s large map and entity count can cause. Low at 154.7 FPS is the choice for competitive play, but it comes with significant visual compromises.

For a 4K monitor, the data suggests Low at 94 FPS is the only preset that provides a consistently smooth experience. Medium at 62.3 FPS is borderline for fast movement, and High at 54.5 FPS is acceptable for slower exploration. Ultra at 37.4 FPS is not recommended for any gameplay that involves aiming or rapid camera movement, as it will feel sluggish.

Overall, the best experience per the measured rows is 1440p Medium at 102.6 FPS. It combines a sharp resolution, moderate settings that preserve visual fidelity, and a frame rate that exceeds the refresh rate of most 1440p monitors. If you are on a 1080p display, 1080p Medium at 147.5 FPS is the sweet spot, offering high clarity and near-maximum refresh rates without the visual noise of Low presets. For 4K owners, accept that this combo is best used at Low settings, and reserve Medium for screenshots or non-combat moments.