Rust

The Intel Core i5-9400 paired with the NVIDIA GeForce RTX 4060 Ti 8 GB delivers a playable yet scaling-sensitive experience in Rust, with benchmark data showing a clear transition from CPU-bound territory at lower resolutions to GPU-bound behavior at 4K. Across the twelve measured configurations, the combo ranks 782nd out of 1717 tested combinations, placing it in the upper-middle tier of systems evaluated for this title. The data reveals a system whose performance ceiling is defined more by resolution and preset choice than by raw component headroom.

Resolution Scaling

The measured FPS data shows a pronounced and predictable drop as resolution increases, but the magnitude of that drop varies significantly by preset. At Low settings, the system moves from 145 FPS at 1920x1080 to 125.9 FPS at 2560x1440, a reduction of roughly 13%, and then falls to 79.1 FPS at 3840x2160, representing a 45% decrease from the 1080p baseline. This pattern indicates that at Low settings with 1080p, the workload is heavily CPU-limited, as the i5-9400's six threads are the primary constraint before the GPU becomes saturated.

For High settings, the scaling curve steepens considerably. The system delivers 105.4 FPS at 1080p, drops to 71.4 FPS at 1440p (a 32% reduction), and then reaches 46.6 FPS at 4K. The transition from 1440p to 4K shows a further 35% decline, suggesting that at 4K High, the RTX 4060 Ti's 8 GB frame buffer and 128-bit memory interface are becoming the limiting factors. The gap between 1080p and 4K at High settings is 58.8 FPS, a substantial margin that reflects the GPU's difficulty maintaining performance as pixel count quadruples.

Ultra settings exhibit the most severe scaling penalty. At 1080p, the system manages 80.6 FPS, which drops to 55 FPS at 1440p, and then collapses to 32.1 FPS at 4K. The 4K result represents a 60% reduction from the 1080p figure, confirming that Ultra presets push the GPU far beyond its comfortable operating envelope. Interestingly, the Medium preset shows the most linear scaling behavior: 124.1 FPS at 1080p, 85.8 FPS at 1440p, and 53 FPS at 4K, with each step showing a consistent 31-38% decline.

The data suggests that at 1080p, even the most demanding presets stay above 80 FPS, indicating the i5-9400's six cores and 4.10 GHz boost clock provide adequate headroom for this resolution. However, the steep drop between 1440p and 4K across all presets points to the RTX 4060 Ti's 288.0 GB/s memory bandwidth as a structural limitation, not a driver or optimization issue.

Settings Recommendations

For players targeting 60 FPS as a baseline, the data supports specific preset choices at each resolution. At 1920x1080, all four presets exceed 80 FPS, making Medium (124.1 FPS) the best balance of visual quality and performance headroom, since it delivers 19 FPS more than High while remaining 44 FPS above Ultra. For competitive play where high framerates matter, Low at 145 FPS provides the maximum throughput, but Medium's 124.1 FPS is close enough that the visual improvements justify the 21 FPS trade-off.

At 2560x1440, the choices narrow. High (71.4 FPS) remains viable for 60 Hz displays, but Medium (85.8 FPS) is the superior option, offering 14.4 FPS more while presumably maintaining similar visual fidelity. Ultra at 55 FPS dips below the 60 FPS threshold, making it a poor choice for this resolution unless the user prioritizes image quality over frame pacing. Low at 125.9 FPS is excessive for most displays and sacrifices too much visual detail.

At 3840x2160, the system struggles to maintain 60 FPS on any preset. The best result is Low at 79.1 FPS, which is playable but visually sparse. Medium at 53 FPS and High at 46.6 FPS both fall short of the 60 FPS target, while Ultra at 32.1 FPS is borderline unplayable for smooth gameplay. For 4K users, the recommendation is clear: use Low settings to maintain acceptable frame rates, or accept that visual quality must be sacrificed for responsiveness. The 4K Ultra result of 32.1 FPS is particularly telling, as it indicates the GPU is completely saturated at this configuration.

GPU Role

The NVIDIA GeForce RTX 4060 Ti 8 GB is a critical component in this pairing, and its specifications directly explain the observed performance patterns. The GPU's 8 GB GDDR6 memory on a 128-bit bus provides 288.0 GB/s of bandwidth, which becomes a significant constraint at higher resolutions. The 4K Ultra result of 32.1 FPS, compared to the 1080p Ultra figure of 80.6 FPS, shows a 60% performance drop that correlates with the increased memory pressure from rendering at four times the pixel count.

The GPU's boost clock of 2535 MHz and base clock of 2310 MHz, combined with 4352 shading units, allow it to process geometry and pixel data efficiently at lower resolutions. However, the 48 ROPs and 136 TMUs are relatively modest for a card in this class, and the 22.06 TFLOPS FP32 compute throughput is not enough to compensate for the bandwidth limitations at 4K. The memory clock of 18 Gbps effective is fast, but the narrow 128-bit bus caps total bandwidth well below what the GPU's compute units can theoretically consume.

The GPU's benchmark score of 2913 in 3DMark Steel Nomad DX12 places it in the 17th percentile among all GPUs, which is surprisingly low given its modern architecture. The nearest rivals in the database include the NVIDIA GeForce GT 555M with an identical score of 2913, and the RTX 4060 Ti 16 GB at 2907, a 0.2% difference. This suggests that the 8 GB variant's performance is heavily constrained by its memory configuration, as the 16 GB version with more VRAM scores nearly identically, indicating the bottleneck is bandwidth rather than capacity.

In Rust specifically, the GPU's role becomes more pronounced at 4K, where the measured FPS drops below 50 on High and below 35 on Ultra. The combination of 8 GB VRAM and 288.0 GB/s bandwidth is adequate for 1080p and 1440p gaming, but the 4K dataset clearly exceeds what this card can handle comfortably. The data indicates that the RTX 4060 Ti 8 GB is best suited for 1080p and 1440p gaming, with 4K requiring substantial settings reductions to achieve playable framerates.

FAQ

Q: What is the best resolution for this system in Rust?

A: Based on measured FPS, 1920x1080 is the only resolution where all presets exceed 80 FPS, making it the most versatile choice. At 2560x1440, Medium (85.8 FPS) and Low (125.9 FPS) are playable, but Ultra drops to 55 FPS.

Q: Can this system run Rust at 4K?

A: Yes, but only at Low settings, which achieves 79.1 FPS. Medium (53 FPS), High (46.6 FPS), and Ultra (32.1 FPS) all fall below the 60 FPS threshold, making them less suitable for smooth gameplay.

Q: How does the RTX 4060 Ti 8 GB compare to other GPUs in benchmarks?

A: The GPU scores 2913 in 3DMark Steel Nomad DX12, placing it in the 17th percentile. It scores identically to the GT 555M (2913) and 0.2% higher than the RTX 4060 Ti 16 GB (2907), with a 0.7% margin over the GT 650M.

Q: Is the i5-9400 a bottleneck at 1080p?

A: The data suggests yes, particularly at Low settings where 145 FPS is achieved. This high framerate, combined with the CPU's 6 cores and 6 threads, indicates the CPU is the limiting factor at this resolution and preset.

Q: What is the framerate difference between Medium and High at 1440p?

A: Medium delivers 85.8 FPS, while High delivers 71.4 FPS, a difference of 14.4 FPS (approximately 20%). This makes Medium the more efficient choice for maintaining high frame rates at this resolution.

Q: How does the GPU's memory configuration affect 4K performance?

A: The 8 GB GDDR6 memory on a 128-bit bus with 288.0 GB/s bandwidth becomes a limiting factor at 4K. The 45% FPS drop from 1080p High to 4K High (105.4 to 46.6 FPS) demonstrates this constraint clearly.

CPU Role

The Intel Core i5-9400 serves as the foundation of this system, and its specifications directly influence the measured results. With 6 cores and 6 threads operating at a 2.90 GHz base clock and 4.10 GHz boost, the CPU provides adequate single-thread performance for Rust's primary game logic, but its lack of hyper-threading means it cannot handle heavily multi-threaded workloads as efficiently as CPUs with more threads. The 9 MB shared L3 cache and 42.7 GB/s dual-channel memory bandwidth are sufficient for the game's data streaming needs at lower resolutions.

The CPU's benchmark scores are modest: 803 in Cinebench R15 multicore, 3346 in R20 multicore, and 7969 in R23 multicore. These scores place the i5-9400 in the 50th percentile among all CPUs, with an average benchmark score of 2305. The nearest rivals include the Intel Core i3-10305 (2300, 0.2% faster) and the Intel Core i7-8809G (2319, 0.6% slower), indicating the i5-9400 sits in a tightly packed performance band where small differences matter.

The CPU's influence on Rust's performance is most evident at 1080p Low settings, where the system achieves 145 FPS. This high framerate, combined with the fact that the GPU is not heavily taxed at this resolution, indicates the CPU is the limiting component. The i5-9400's 4.10 GHz boost clock helps maintain responsiveness in single-threaded scenarios, but the 6-thread limit becomes apparent in complex scenes with many entities, where the CPU must manage physics, AI, and network synchronization simultaneously.

At 1440p and 4K, the CPU's role diminishes as the GPU becomes the primary bottleneck. The measured FPS drops follow a pattern consistent with GPU limitation, and the CPU's performance headroom at these resolutions is sufficient to avoid major frame pacing issues. The gap between 1080p Low (145 FPS) and 1440p Low (125.9 FPS) is 19.1 FPS, which is smaller than the gap between 1440p and 4K at the same preset (46.8 FPS), confirming that the GPU increasingly dominates the performance equation at higher resolutions.

The CPU's 65 W TDP and Coffee Lake architecture are well-suited for the i5-9400's role in this pairing. The 14 nm process node and 4.10 GHz boost clock provide a reasonable balance of power and performance, though the CPU's end-of-life production status and lack of an unlocked multiplier limit future overclocking potential. The data shows that for Rust specifically, the i5-9400 is a capable but not exceptional partner for the RTX 4060 Ti, with the CPU's 50th percentile ranking suggesting it is neither a clear bottleneck nor an obvious upgrade priority for this game.