Rust

The AMD Ryzen 5 8400F and NVIDIA GeForce RTX 4070 Ti combination delivers a highly capable Rust experience, but the data reveals that the RTX 4070 Ti is the dominant performance driver at lower resolutions, while the CPU becomes a more significant factor as resolution increases. This pairing lands in the 181st spot out of 1717 tested combos, placing it in the top 11% of configurations. The measured frame rates show a system that can handle competitive play at 1080p and smooth 1440p gaming, but 4K Ultra settings push the hardware to its limits, resulting in a sub-60 FPS average.

Resolution Scaling

The performance drop from 1080p to 4K is dramatic and clearly illustrates where the bottleneck shifts. At High settings, the average frame rate falls from 152.3 FPS at 1920x1080 to 101.3 FPS at 2560x1440, a 33.5% reduction, and then further down to 63.8 FPS at 3840x2160, a 58.1% drop from the 1080p baseline. This scaling pattern indicates that at 1080p and 1440p, the Ryzen 5 8400F is keeping pace with the GPU's output, allowing the RTX 4070 Ti to stretch its legs. However, the transition to 4K places an immense load on the GPU's pixel processing and memory bandwidth, causing the frame rate to plummet. The RTX 4070 Ti, with its 12 GB of GDDR6X memory and 504.2 GB/s bandwidth, is being saturated at 4K, which explains why the frame rate at 4K High (63.8 FPS) is less than half of what the system achieves at 1080p Low (218.3 FPS).

The gap between Low and Ultra settings widens as resolution increases, confirming that the GPU is the limiting factor at 4K. At 1080p, the difference between Low (218.3 FPS) and Ultra (113.3 FPS) is 105 FPS, whereas at 4K, the same settings gap yields only a 60.1 FPS difference (108 FPS vs 47.9 FPS). This compression of performance at 4K suggests that while the GPU is struggling with the raw pixel count, the CPU overhead per frame is also becoming more pronounced. The Ryzen 5 8400F's 6 cores and 12 threads, based on the Zen 4 architecture with a boost clock of 4.70 GHz, provide strong single-threaded performance, which is critical for Rust's simulation and physics logic. The data suggests that at 1080p, the CPU is able to feed the GPU efficiently, but at 4K, the GPU's rendering workload becomes so heavy that it can no longer maintain high frame rates, regardless of the CPU's capability.

Settings Recommendations

For the best balance of visual fidelity and performance, the Medium preset at 2560x1440 is the sweet spot for this combination. The measured 122.1 FPS average at 1440p Medium is well above the 60 FPS threshold for smooth gameplay and represents a 20.5% improvement over High settings (101.3 FPS) at the same resolution. This configuration allows the RTX 4070 Ti to maintain high frame rates without the significant drop seen at Ultra (79.6 FPS), which is a 34.8% reduction from Medium. For players prioritizing frame rate over visual detail, the Low preset at 1920x1080 delivers an exceptional 218.3 FPS average, making it ideal for competitive scenarios where response time is paramount.

At 4K, the data suggests that Medium settings (70.9 FPS) are the highest playable option, as Ultra (47.9 FPS) falls below the 60 FPS target that most gamers consider the minimum for a fluid experience. The High preset at 4K (63.8 FPS) is also viable, but it offers only a 10% improvement over Medium while requiring significantly more GPU resources. The Ultra preset at any resolution above 1080p is not recommended, as it consistently produces the lowest frame rates in the dataset, with the 4K Ultra result of 47.9 FPS being the only sub-50 FPS score recorded. The 1080p Ultra result of 113.3 FPS is acceptable, but the visual gains over High (152.3 FPS) are unlikely to justify the 25.6% performance penalty.

How This Combo Ranks

The comboRankInGame of 181 out of 1717 total combinations places this system in the 89.5th percentile of tested configurations. This ranking is impressive given that the Ryzen 5 8400F is a mid-range CPU, while the RTX 4070 Ti is a high-end GPU. The CPU's percentileVsAllCpus of 82 indicates that it outperforms the majority of processors in general benchmarks, with an avgBenchmarkScore of 25064. This score is nearly identical to its nearest rival, the AMD Ryzen 7 2700X, which has an avgScore of 25057 and a deltaPct of 0. The 8400F also closely matches the AMD Ryzen AI 5 PRO 340 (25099, -0.1%) and the AMD Ryzen 5 7500F (24993, 0.3%), showing that it sits in a competitive performance band.

The GPU's percentileVsAllGpus of 85 is even higher, with an avgBenchmarkScore of 44900. Its nearest rival, the NVIDIA GeForce RTX 5090 Mobile, has an avgScore of 45152, representing a deltaPct of -0.6%, meaning the RTX 4070 Ti is slightly slower. This data indicates that the GPU is the stronger component in this pairing, and the overall combo ranking is likely buoyed by the GPU's ability to handle Rust's demanding rendering at high resolutions. The gap between the CPU and GPU performance percentiles (82 vs 85) suggests a slight imbalance, but the measured FPS data shows that this does not create a severe bottleneck in most scenarios.

Measured FPS Breakdown

At 1920x1080, the system delivers its highest frame rates across all settings. The Low preset achieves 218.3 FPS, which is the fastest result in the entire dataset. Medium follows at 177.8 FPS, High at 152.3 FPS, and Ultra at 113.3 FPS. The scaling from Low to Ultra at 1080p shows a 48% reduction in performance, indicating that the GPU is handling the increased visual complexity without being overly constrained by the CPU.

Moving to 2560x1440, the frame rates remain robust but show a clear downward trend. Low produces 182.7 FPS, Medium 122.1 FPS, High 101.3 FPS, and Ultra 79.6 FPS. The drop from 1080p Low to 1440p Low is 16.3%, while the drop from 1080p Ultra to 1440p Ultra is 29.7%, showing that higher settings exacerbate the resolution penalty.

At 3840x2160, the system struggles to maintain high frame rates. Low yields 108 FPS, which is still playable, but Medium drops to 70.9 FPS, High to 63.8 FPS, and Ultra to 47.9 FPS. The 4K Ultra result is the only score below 60 FPS in the entire dataset, and the 4K Low score is 50.5% lower than the 1080p Low score. This breakdown confirms that 4K gaming is possible with this combo, but only at lower settings.

GPU Role

The NVIDIA GeForce RTX 4070 Ti is the primary driver of frame rates in this analysis, particularly at higher resolutions. With 12 GB of GDDR6X memory on a 192-bit bus, the GPU provides a memory bandwidth of 504.2 GB/s, which is essential for Rust's large, open-world environments that require frequent texture streaming. The GPU's boost clock of 2610 MHz and base clock of 2310 MHz allow it to sustain high throughput, and its 7680 shading units handle the game's complex lighting and shadow calculations efficiently.

The GPU's performance at 4K Low (108 FPS) versus 4K Ultra (47.9 FPS) highlights the importance of its memory subsystem. At Ultra settings, the game likely exceeds the 12 GB VRAM capacity in certain scenes, causing the GPU to rely on system memory over the PCIe 4.0 x16 interface, which reduces performance. The 84.1 FPS difference between 1080p Low and 4K Low also points to the GPU's raw compute limitations at higher resolutions, as the 40.09 TFLOPS FP32 performance is stretched thin when rendering four times the pixels of 1080p. The GPU's transistor count of 35,800 million on a 5 nm process gives it a density of 121.8M per mm², which enables the high clock speeds necessary for competitive frame rates.

CPU Role

The AMD Ryzen 5 8400F plays a supporting role in this configuration, but its performance characteristics are crucial for maintaining high frame rates at lower resolutions. With 6 cores and 12 threads based on the Zen 4 architecture, the CPU provides strong single-threaded performance, as evidenced by its 3dmark_single_thread score of 951 and cinebench_r23_singlecore score of 2943. This is important for Rust, which has significant single-threaded game logic that can become a bottleneck if the CPU is too slow.

The CPU's boost clock of 4.70 GHz and base clock of 4.20 GHz ensure that it can keep up with the GPU's frame generation at 1080p and 1440p. The 16 MB shared L3 cache helps reduce memory latency, which is beneficial for the game's entity management and network code. The CPU's 3dmark_16_threads score of 6091 and 3dmark_max_threads score of 6165 show that it scales well with multithreaded workloads, but the 3dmark_2_threads score of 1874 reveals that its dual-thread performance is relatively modest, which could limit performance in scenarios that rely heavily on a few threads.

The data shows that the CPU is not the primary bottleneck in most tested configurations. At 1080p Low, the system achieves 218.3 FPS, which is close to the CPU's realistic limit for frame generation. However, at 4K, the CPU's role diminishes as the GPU becomes the limiting factor. The CPU's memory bandwidth of 83.2 GB/s over dual-channel DDR5 is adequate for feeding the GPU, but it is significantly lower than the GPU's 504.2 GB/s, which means the CPU cannot transfer data to the GPU fast enough to avoid stalls at very high frame rates.

FAQ

Q: What is the best resolution for this combo to maintain over 100 FPS on High settings?

A: The system achieves 152.3 FPS at 1920x1080 High and 101.3 FPS at 2560x1440 High, so both 1080p and 1440p can maintain over 100 FPS on High settings.

Q: How does the Ryzen 5 8400F compare to its closest competitor in benchmarks?

A: The Ryzen 5 8400F has an avgBenchmarkScore of 25064, which is nearly identical to the AMD Ryzen 7 2700X's 25057, showing a deltaPct of 0. It also beats the AMD Ryzen 5 7500F by 0.3% (24993).

Q: Is the RTX 4070 Ti capable of 4K gaming in Rust?

A: The data shows 4K gaming is possible, with a 108 FPS average at Low settings, but Ultra settings drop to 47.9 FPS, which is below the 60 FPS threshold. Medium settings at 4K yield 70.9 FPS.

Q: What is the frame rate difference between Low and Ultra at 1440p?

A: At 2560x1440, the Low preset produces 182.7 FPS, while Ultra produces 79.6 FPS. This represents a 103.1 FPS difference, or a 56.4% reduction in performance.

Q: How does this combo rank among all tested configurations?

A: The comboRankInGame is 181 out of 1717 tested combos, placing it in the top 10.5% of all configurations tested.

Q: What is the GPU's memory bandwidth and how does it affect 4K performance?

A: The RTX 4070 Ti has a memory bandwidth of 504.2 GB/s over a 192-bit bus. The 4K Ultra result of 47.9 FPS suggests that this bandwidth is insufficient for the highest settings at 4K, likely due to VRAM capacity constraints with 12 GB.